N530AS

Part: CONTROLLER — FAULTED (ZONE 200) · airframe 51,496 hrs · 15,244 cycles

FL 340 (34000') AUTO PILOT 'B' FAILED. WILL NOT ENGAGE. CIRCUIT BREAKER BAT BUS P6 5 TRIPPED. ALL 3 ZONE TEMP LIGHTS ILLUMINATED. BOTH PACKS LIGHTS ILLUMINATED. MAINTAINED CABIN ALTITUDE OF 6000' DURING DESCENT. STANDBY PWR OFF LIGHT ILLUMINATED. RIGHT REVERSER FAILED TO DEPLOY. STARTED APU AFTER LANDING, NORMAL VOLTS/FREQ NO BLUE APU BUS LIGHT, SHUT OFF APU. GROUND POWER WOULD NOT STAY ON. BAT BUS SECT 2 CIRCUIT TRIPPED. GROUNDED - YES. DIVERSION - C/B 28VDC BAT BUS SECT 2 IS LOCATED ON SPCU. INSPECT LRU & RACK CONNECTOR REF AMM 24-34-11 NO DEFECTS NOTED. RESET C/B REF AMM 20-60-01, POWER RESTORED TO AIRCRAFT. INSPECT C/B'S ON ALL P6 PANELS & TB5060D REF WDM 24-61-32, 24-61-11 NO DEFECTS NOTED. NO RELATED FAULTS ON DFCS BITE, LAND VERIFY TEST PASS REF AMM 22-11-00/201. RAN PACKS & BITE CKS PASS. CYCLED #2 TR, NO FAULT ON EAU. RAN ENGINE & APU, POWER TRANSFER NORMAL. DUE TO NATURE OF DEFECT, REMOVED & REPLACED SPCU REF AMM 24-34-11 1 C/B OPEN & CLOSED OPS CKS NORMAL, SEAMC SCOT/PETER ADVISED.

Part: POWER SUPPLY — INOPERATIVE (EMERGENCY LIGHTS) · airframe 49,733 hrs · 14,625 cycles

REF T/C 78233001 EMERGENCY LIGHTS ASSOCIATED TO EMERGENCY POWER SUPPLY M1672 AND M1675 FAILS CAPACITY CHECK. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHTS BATTERY PACK M1672 AND M1675 POWER SUPPLY REF BOEING AMM TASK 33-51-06-960-805. OP TEST GOOD. EMERGENCY LIGHTS WORKING AS REQUIRED. NO FURTHER DEFECTS.

Part: BATTERY PACK — DISCHARGED (EMERGENCY LIGHTS) · airframe 49,567 hrs · 14,563 cycles

L/H AND R/H AFT OVERWING EMER EXIT LIGHT INOPL/H AND R/H OVERWING ESCAPE GROUND EMERG LIGHT INOP. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHT BAT PACK (M1671) AND (M1670) REF AMM 33-51-06. OPERATIONAL TEST PASS.

Part: LIGHT — MISSING (MAIN CABIN) · airframe 49,386 hrs · 14,509 cycles

6" OF PHOTOLUMINESENT FLOOR PROX LIGHT MISSING OF FWD EDGE OF LEFT STRIP. GROUNDED - YES. REMOVED AND REPLACED FIRST SECTION OF LEFT PHOTOLUMINESENT FLOOR PROX LIGHT STRIP REF AMM 33-51-15.

Part: WIRE HARNESS — DAMAGED (#2 ENGINE) · airframe 48,323 hrs · 14,161 cycles

WHILE PERFORMING T/C N842001 RIGHT ENG FOUND J9 HARNESS DAMAGED. GROUNDED - YES. REPLACED NEW J9 HARNESS AND PERFORMED INSTALLATION TEST GOOD AMM 73-21-06/401.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 47,797 hrs · 13,981 cycles

PRESSURIZATION AUTO FAIL LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED FIM 21-31- TASK 827 DUE TO AUTO FAIL LIGHT ILLUMINATED BITE PROCEDURE FOR SYSTEM #2. OK.

Part: FIRE DETECTOR — FAULTY (#2 ENGINE) · airframe 47,742 hrs · 13,964 cycles

MANAGEMENT REQUEST FOR FOLLOW UP TO IN-FLIGHT OVERHEAT CONDITION ON ENGINE 2 **(PRI 2)**. GROUNDED - YES. (RESOLVED ON W/O: 1970350 TASKCARD: N/R-00002 ) PER TECH SERVICES NOTE PERFORMED AMM 26-11-01. REMOVED AND REPLACED FIRE DETECTOR LEFT CORE (M1759) AND RIGHT CORE (M1760) ON #2 ENGINE. UNABLE TO INSTALL M1757 AND M1758 DUE TO WRONG PARTS SENT AND TIMEALT DEACTIVATION PROCEDURE USED PER CHAPT 5 TABLE 3 ITEMS 1 & 7ALT DEACTIVATION PROCEDURE REVERSED REF MPM CH 5 TABLE 3 ITEMS 1 & 7 FOR MX. AT THIS TIME ENG FIRE DETECTION OPS TEST PASSED REF AMM 26-11-00TECH SERVICES OKAY TO CLEAR TSR DEFERRAL. TECH SERVICES UMESH NOTIFIED. SEAMC NOTIFIED.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 47,746 hrs · 13,966 cycles

AUTOLAND UNSATISFACTORY ON PRACHIE HGS/ AUTOLAND PROCRDURE AIRCFRAFT CENTERLINE TOUCHED DOWN APPROXIMATELY 40 FEET LEFT OF RUNWAY CENTER RWY 16R, WIND 130@4. GROUNDED - YES. (RESOLVED ON W/O: 1969481 TASKCARD: N/R-00001 ) ACCOMPLISHED DFCS BITE PER FIM 22-11 TASK 801 NO CURRENT FAULTS NOTED.ACCOMPLISHED HGS BITE TEST PER SMM 34-36-00 HGS BITE TEST PASSED NO CURRENT FAULTS. PERFORMED DFCS LAND VERIFIY TEST PER AMM 22-11-00/201 LAND VERIFY TEST PASSED. PERFORMED HGS SYSTEM TEST PER SMM 34-36-00 ALL TESTS PASSED. THIS CLEARS MEL 22-20B, 22-99B, 34-44I, 34-99B C/N 12077530 PLACARDS REMOVED SEAMC DAVE NOTIFIED.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 47,739 hrs · 13,963 cycles

SINGLE FMC OPERATION DISPLAYED. GROUNDED - YES. CYCLED FMC SEL SW & " SINGLE FMC OPS" ANN EXTINGUISHED. FMCS OPS NML IWA 34-61-00.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 47,318 hrs · 13,796 cycles

PER TASK CARD 7827300 #2 ENGINE, ECONOMIC FAULT MESSAGE # 77-20872. " THE TOP LEFT EGT SIGNAL (T495S4) IS OUT OF RANGE. GROUNDED - YES. (RESOLVED ON W/O: 1963963 TASKCARD: N/R-00003 ) VERIFIED FAULT IS ACTIVE ON ALL FLIGHT LEGS AND S4 SHOWS DASHES IN INPUT MONITORING. PERFORMED AN EGT SYSTEM CLEANING AND SYSTEM INSPECTION REF MM 77-21-01-200-801-F00. ALL VALUES NOW WITHIN LIMITS AND TEMPS SHOW FOR S4 IN INPUT MONITORING. THIS CLEARS THE PLT. SEAMC DAVE WAS NOTIFIED.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 47,175 hrs · 13,759 cycles

APU FAILED TO START, SEVERAL ATTEMPTS (NO ROTATION). GROUNDED - YES. ON DEFERRAL.

Part: ACTUATOR — LEAKING (#2 ENGINE) · airframe 47,105 hrs · 13,742 cycles

FUEL DRIP FOUND ON PREFLIGHT ON #2 ENGINE. GROUNDED - YES. REMOVED AND REPLACED #2 ENG RH VSV ACTUATOR UP TO STEP F. (9) REF AMM 75-31-01-400-802-F00. CR 40838 07/16/2023 ASA INSP 96.REMOVED AND REPLACED #2 ENG LH VSV ACTUATOR UP TO STEP F.(9) REF AMM 75-31-01-400-802-F00. YLU 54315 07/16/2023 ASA INSP 96.COMPLTED INSTALLATION OF #2 ENG L/H VSV ACT REF MM 75-31-01. LK AND OPS CHECK GOOD. 15171COMPLETED INSTALLATION OF #2 ENG R'H VSV ACT REF 75-31-01. LK AND OPS CHECK GOOD. 82391MIG 2C 40-0003913 CLOSED. CLEARS PLT. SEAMC NOTIFIED JOEY. MIG-2C SER# 40-0003913 INITIATED.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 47,087 hrs · 13,734 cycles

ON TAXI IN VTK MESSAGE ON FO MFD. GROUNDED - YES. REBOOOTED FMC'S PRECAUTIONARY ALSOO REF VTK NUISANCE ERROR MM TASK 34-61-00-860-801. NORM OPS RESTORED FMC 1 & 2 OPS TEST OK REF. MM 34-61-00-710-801.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 46,006 hrs · 13,421 cycles

L2 WINDOW DIFFICULT TO LOCK. GROUNDED - YES. CHECKED THE ADJUSTMENT TO CLOSE THE L2 WINDOW. IAW B737-800 AMM 56-12-11-820-801. THE FORCE NECESSARY TO CLOSE THE WINDOW IS WITHIN LIMITS.

Part: POWER SUPPLY — INOPERATIVE (MAIN PASSENGER C) · airframe 46,006 hrs · 13,421 cycles

ALL EMERGENCY LIGHTS ASSOCIATED WITH BATTERY PACK M1674 INOP. GROUNDED - YES. REMOVED AND REPLACED M1674 EMERGENCY POWER SUPPLY W/BATTERY IAW B737 AMM 33-51-06. OPS CHECKS GOOD.

Part: SKIN — CRACKED · airframe 46,006 hrs · 13,421 cycles

CRACKED INDICATION MARKED AT .600"L, R/H HORIZONTAL LOWER SKIN, 9" FWD OF AFT SPAR, I/B OF STA. 111.10. GROUNDED - YES. REPAIRED R/H HORIZONTAL LOWER SKIN @ STA 111.10 IAW B787-NG SRM 55-10-01-2R-11. THIS IS A CLASS "B" REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 TOTAL FLIGHT CYCLES.

Part: SKIN — CRACKED · airframe 46,006 hrs · 13,421 cycles

CRACKED INDICATION MARKED 1.100"L L/H HORIZONTAL LOWER SKIN, 8.75" FWD OF AFT SPAR I/B OF STA. 147.90. GROUNDED - YES. REPLACED L/H HORIZONTAL LOWER SKIN @ STA. 147.90 IAW B737-NG SRM 55-10-01-2R-11. THIS IS A CLASS "B" REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 TOTAL FLIGHT CYCLES.

Part: VALVE — FAILED (LEFT ECS BAY) · airframe 45,864 hrs · 13,371 cycles

ON MASTER RECALL CONT CAB ZONE TEMP LIGHT ILLUMINATED. GROUNDED - YES. CONFIRMED FAULT, CONT CAB ZONE TEMP LIGHT ILLUMINATES WHEN RECALLED. PACK/ZONE TEMP CONTROLLER SHOWS HARD FAIL FLIGHT DECK TCV (V143). REMOVED & REPLACED TCV REF B737-800 AMM 21-61-21.

Part: COMPENSATOR — FAULTY (RIGHT MAIN TANK) · airframe 45,777 hrs · 13,340 cycles

AFTER CENTER TANK EMPTY & CENTER FUEL PUMPS OFF APPROX 10 MINS LATER RT TANK FUEL QTY 1060 LB LESS THAN LT. BECAUSE TOTAL FUEL QTY REFLECTED AS PLANNED, FUEL LEAK WAS NOT SUSPECTED & BALANCED FUEL VIA CROSSFEED. RT QTY CONTINUED TO DECREASE 100 LB OVER 25 MINS COMPARED TO LT. #1 ENG FUEL USED 6.52, #2 USED 6.42 UPON BLOCK IN. GROUNDED. ACCOMP TANK & COMPENSATOR UNIT RESISTANCE & CAPACITANCE CHECKS, FOUND COMPENSATOR & 6 TANK UNITS BAD IAW AMM 28-41-21-710-801. REPLACED TANK UNITS 4 THROUGH 8 IAW AMM 28-41-21/401. REPLACED COMP PROBE, TU'S 1, 2, 3, REF AMM 28-41-21. TANK & COMP UNITS TEST NOW CHECKS GOOD. ALL VALUES ARE WITHIN LIMITS REF AMM 28-41-21/501. #2 FQIS TEST GOOD REF AMM TASK 28-41-00-730-801.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 45,695 hrs · 13,313 cycles

CONT CAB ZONE TEMP LIGHT ILLUMINATES ON MASTER CAUTION RECALL. GROUNDED - YES. #2 PZTC SHOWS FLT DECK TRIM VALVE FAULT. ACCOMPLISHED PZTC BITE TEST REF B737-800 AMM 21-61-00-700-806-002. FAULT RESET. PERFORMED CABIN ZONE TEMP CONTROL AND INDICATION OPERATIONAL TEST REF AMM 21-61-00-700-807-002. OPS CK GOOD.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 45,573 hrs · 13,275 cycles

ON ROLL OUT VTK DISPLAYED ON LEFT NAV DISPLAY IT CYCLED ON AN OFF. GROUNDED - YES. PERFORMED B737-800 FIM 34-61 TASK 836. OPENED C/B FMCS CMPTR 1 & 2 FOR 10 SECS AND RESET. OPS TEST GOOD VTK FLAG CLEAR. NO FURTHER DEFECTS NOTED.

Part: LEAD — INOPERATIVE (NR 2 IGNITION) · airframe 45,562 hrs · 13,272 cycles

DURING START OF ENGINE #2, HAD NO LIGHTOFF, SECURED ENGINE PER QRC/QRH. RAMP REPORTED SMALL FUEL PUDDLE UNDER #2 COWL. START ATTEMPT WITH RH IGNITER. GROUNDED - YES. REMOVED AND REPLACED #2 ENG R/H IGINITION LEAD REF B737-800 AMM 74-21-01/ 401 MEL 74-1E MAINT. CONFIG REVERSED. OPS CHK GOOD. THIS CLEARS MEL 74-1E.SEAMC ANDY NOTIFIED. ALL PLACARDS REMOVED.

Part: EXCITER — INOPERATIVE (#2 ENGINE) · airframe 45,444 hrs · 13,242 cycles

RIGHT IGNITION ENG #2 SYSTEM INOP. GROUNDED - YES. REPLACED R/H IGNITION EXCITER REF AMM 74-11-01.

Part: EXCITER — FAULTED (NR 2 ENGINE) · airframe 45,401 hrs · 13,229 cycles

ON ENGINE #2 START WITH START LEVER IDLE NO EGT RISE OR LIGHT OFF. ON IGNITION R. GROUNDED - YES. REMOVED AND REPLACED #2 ENG RH IGNITOR PLUG I.A.W. B737-800 AMM 74-21-02; OPS CK GOOD. REMOVED AND REPLACED #2 ENG TOP IGNITION EXITER (RH) I.A.W. AMM 74-11-01.

Part: CONVERTER — INOPERATIVE (E/E BAY) · airframe 45,394 hrs · 13,227 cycles

AFTER LANDING, APU WOULD NOT START. FAULT INDICATED. GROUNDED - YES. REMOVED AND REPLACED APU SCU IAW B737-800 AMM 49-41-61/401. COLD SOAK START PASSED. ORIG SUBMISSION DATE: 1/13/2023

Part: TRANSCEIVER — MALFUNCTIONED (NR 2 HF COMMS) · airframe 45,242 hrs · 13,190 cycles

# 2 HF DOES NOT TRANSMIT OR RECEIVE WITH EITHER CAPT OR FO AUDIO PANEL,AND WITH EITHER CAPT OR FO PUSH TO TALK SWITCHES. UPON LANDING DISCOVERED HF/SAT XFR SWITCH WAS IN SAT. RETURNED TO HF AND HF 2 OPS NORMAL. GROUNDED - YES. PERFORMED OPS. CK OF HF COMM SYSTEM PER AMM 23-11-00/501.

Part: RADIO — FAULTED (NR 1 HF) · airframe 44,762 hrs · 13,068 cycles

HF RADIO #1- RECEIVES AUDIO ONLY- CANNOT TRANSMIT. GROUNDED - YES. PERFORMED BITE TEST IAW B737-800 FIM 23-11/801 ALL TESTS PASSED PERFORMED FIM 23-11 TASK /806 TRANSMITTED SUCCESSFULLY.

Part: SIGN — DETACHED (EMERGENCY EXIT) · airframe 44,747 hrs · 13,063 cycles

OVERHEAD EMERGENCY EXIT SIGN BETWEEN ROWS 16 AND 17, FELL OFF. GROUNDED - YES. REINSTALLED EMERGENCY EXIT SIGN COVER BETWEEN EMERGENCY EXIT DOORS, OPS NORMAL REF B737-800 AMM 33-51-01.

Part: CONTROL MODULE — FAULTED (COURSE SELECTOR) · airframe 44,700 hrs · 13,049 cycles

MCP F/O COURSE SELECTOR DISPLAY - THIRD DIGIT 5 INDICATES "9" 6 INDICATES "8". F/O OUTBOARD DISPLAY UNIT INDICATES CORRECT COURSE SELECTED. GROUNDED - YES. REMOVED AND REPLACED DFCS MODE CONTROL PANEL. OPS CHECK GOOD. REF B737-800 AMM 22-11-34/401. ALL REQUIRED LLM MAINTENANCE TESTS ACCOMPLISHED.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 44,621 hrs · 13,026 cycles

WHILE PERFORMING ASA T/C N8005004 FOUND AFT EMERGENCY LIGHT SYSTEM INOP. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK AT AFT OVERHEAD BATTERY CHARGER REF B737-800 AMM 33-51-06.

Part: WARNING LIGHT — FALSE INDICATION (ZONE TEMP) · airframe 44,568 hrs · 13,013 cycles

FAULT CODE 216 224 00 - ZONE TEMPERATURE CONTROL: ZONE TEMP LIGHT COMES ON UNEXPECTEDLY DURING MASTER CAUTION RECALL - CONT CAB GROUNDED - YES. RESET RIGHT PZTC CONTROL CABIN TRIM AIR VALVE FAULT. OBSERVED TAV DURING BITE, NO DEFECTS NOTED. VALVE MOVED FULL TRAVEL SMOOTHLY OPEN AND CLOSE.

Part: WINDOW — OVERHEATED (FLIGHT DECK) · airframe 44,313 hrs · 12,937 cycles

L2 WINDOW OVERHEAT ILLUMINATED ON THE GROUND. GROUNDED - YES. PERFORMED SYSTEM TEST AND NO FAULTS FOUND. THE FAULT HISTORY ON CONTROL BOX FOR L2 WINDOW DID HAVE A SENSOR FAULT. REMOVED AND REPLACED L2 WINDOW IAW B737-800 AMM 56-12-11-000-801 AND AMM 56-12-11-400-801, ETOPS GROUND FUNCTIONAL CHECK GOOD. ALSO LEAK CHECK GOOD.

Part: FMC — FAULT MESSAGE (UNKNOWN) · airframe 44,316 hrs · 12,939 cycles

ON GROUND AT PAKT FMC DISAGREE LIGHT MOMENTARILY ILLUMINATED AND THEN EXTINGUISHED. QRH CHECKLIST REFERENCED ALSO- GROUND POWER UNIT AT PAKT FAILED/DROPPED OFFLINE LEFT A/C ELECTRICALLY UNPOWERED AND OPERATING ON BATTERY POWER FOR SEVERAL MINUTES. GROUNDED - YES. ACCOMPLISHED FMC SENSOR TEST ON BOTH FMC'S, BOTH SHOW OK REF B737-800 AMM 34-61-00-026.

Part: PLATFORM — DEBONDED (#2 ENGINE) · airframe 43,520 hrs · 12,692 cycles

GE DIAGNOSTICS REPORTS #2 ENGINE S/N 894103. TREND DATA SHOWS AN INCREASE IN TAKEOFF AND CRUISE FAN VIBRATIONS AS INDICATED BY THE FRONT AND REAR VIBRATION PICKUPS. CORE VIBRATIONS HAVE BEEN STABLE DURING THE SAME TIME FRAME. GROUNDED - YES. REPLACED 7 PLATFORMS FOR THE #2 ENG FAN BLADE LUBE IAW ASA TC 78472010.

Part: TRANSCEIVER — FAULTED (NR 1 HF COMMS) · airframe 43,491 hrs · 12,684 cycles

HF1 TEST INOP PER FLT VERIFICATION. GROUNDED - YES. REMOVED AND REPLACED HF 1 REF B737-800 AMM 23-11-21. OPS CHECK GOOD. DURING REPLACEMENT FOUND A #10 BOLT 2 INCHES LONG ON THE BACK OF THE RACK THAT POSSIBLY IMPEDED THE TRANSCEIVER FROM PROPERLY MATING TO THE AIRINC CONNECTOR. ALL TESTS PASS.

Part: HF COMM — INTERMITTENT (UNKNOWN) · airframe 43,467 hrs · 12,678 cycles

HF1 STOPPED TRANSMITTING. GOOD SELCAL CHECK AND ABLE TO HEAR LONG TONE WHEN INITIALIZING. GROUNDED - YES. RERACKED HF1 TRANSCEIVER AND BITE CHECK TEST PASSED. B737-800 FIM 23-11 TASK 801. HF1 COMMUNICATION SYSTEM TEST PERFORMED PER B737-800 AMM 23-11-00-730-801 RESULT GOOD. ABLE TO TRANSMIT AND RECEIVE COMMUNICATION.

Part: HF COMM — INTERMITTENT (UNKNOWN) · airframe 43,463 hrs · 12,677 cycles

UNABLE TO TRANSMIT ON HF1. SELCAL CHECK WAS GOOD, AND ABLE TO HEAR OTHERS ON HF1, BUT CANNOT TRANSMIT. GROUNDED - YES. PERFORMED HF1 SYSTEM BITE PROCEDURE IAW B737-800 FIM 23-11-801 BITE TEST NORMAL. NO FAULTS FOUND. ABLE TO TRANSMIT AND RECEIVE NORMALLY.

Part: POSITION SENSOR — OUT OF ADJUST (UNKNOWN) · airframe 43,428 hrs · 12,670 cycles

UNSUCCESSFUL AUTOLAND DURING FLARE AIRCRAFT CENTERLINE DRIFTED MORE THAN 35 FEET LEFT OF RUNWAY CENTERLINE. GROUNDED - YES. REF B737-800 FIM 22-11 TASK 825, LAND VERIFY TEST FAILED WITH MSG 22-11146. PERFORMED AILERON POS SENSOR ADJ PER B737-800 AMM TASK 22-11-29-820-801. LAND VERIFY TEST WITH ALL TESTS PASSED.

Part: COUPLER — FAULTY (VERTICAL FIN) · airframe 43,244 hrs · 12,624 cycles

HF #2 NOT TUNING DURING THE SYNC PORTION (KEYING MIKE W/SHORT SIDETONE) AND THUS NOT TRANSMITTING WHEN IN DATA MODE,SIDETONES INTERMITTENTLY AND CONTINUOUSLY TRYING TO SYNC BUT DOESNT. RECEIVES SELCAL NORMALLY. RECEIVES VOICE NORMALLY.VOICE TRANSMIT INOP. GROUNDED - YES. CYCLED POWER TO HF 2 W/NO SUCCESS. REMOVED AND REPLACED HF 2 COUPLER OPS CHECK OK REF B737-800 AMM 23-11-61.

Part: SENSOR — FAILED (UNKNOWN) · airframe 43,187 hrs · 12,610 cycles

ON TAXI OUT R1 WINDOW OVERHEAT ILLUMINATED. GROUNDED - YES. CREW ATTEMPTED RESET BEFORE RETURNING TO GATE - NO HELP. WHCU BITE TEST LOGS WINDOW SENSOR FAIL WITH MULTIPLE OCCURENCES IN FLT HISTORY. SWITCHED TO SPARE SENSOR - BITE CK GOOD. ACCOMP SYS OPS CK PER B737-800 AMM 30-41-00, SYS OPS CKS NML. MARKED THE FAILED SENSOR POSITION AS INOP AT SWITCH S1079. GND VERIFICATION SUCCESSFUL.

Part: MODULATING VALVE — FAULTY (RIGHT ECS BAY) · airframe 42,853 hrs · 12,477 cycles

FWD CAB ZONE TEMP LIGHT ILLUMINATED ,RESETS WITH MASTER CAUTION RESET. GROUNDED - YES. REPLACED FWD PASSENGER COMPARTMENT ZONE TRIM AIR MODULATION VALVE REF B737-800 AMM 21-61-21-400-800 THROUGH SEP 3,G,4. BITE TEST GOOD. CONTINUED THROUGH STEP 5,H,3 IN REF TO AMM 21-61-21-400-801 OPS AND LEAK CK GOOD.

Part: TRANSCEIVER — FAILED (UNKNOWN) · airframe 42,667 hrs · 12,418 cycles

HF2 RADIO WILL NOT TRANSMIT OR RECEIVE. GROUNDED - YES. PERFORMED BITE CHECK ON HF2 TRANSCEIVER PER B737-800 FIM 23-11 TASK 801. NO FAULTS NOTED. RADIO CHECK ON FREQ 11282 - RADIO CHECK SATISFACTORY 3X3.

Part: IDG — FAULTY (#2 ENGINE) · airframe 42,563 hrs · 12,388 cycles

#2 GEN DRIVE LIGHT ILLUMINATED AFTER TAKE OFF COMPLETED "DRIVE" CHECKLIST. GROUNDED - YES. ACCOMPLISHED PCU 2 BITE TEST. IDG FAULT PRESENT. REMOVED & REPLACED #2 ENG IDG IAW B737-800 AMM 24-11-11. OPS CHECK OK. REF AMM 24-11-11-080-801 REMOVED #2 IDG FILTER HAD NO CONTAMINATION.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 42,366 hrs · 12,331 cycles

AURAL "ALTIMETER" CALL MADE BY AIRCRAFT DESCENDING THRU FL180 WITH ALTIMETERS SET TO LOCAL ALTIMETER SETTING CORRECTLY. AIRCRAFT ALTITUDE CONFIRMED WITH ATC AND CORRECT. "ALTIMETER" ALSO SHOWN ON NAV DISPALY ASSOCIATED WITH AURAL CALL. GROUNDED - YES. PERFORMED DFCS BITE CHECK PER B737-800 FIM 22-11 TASK 801. NO CURRENT STATUS FAULTS. ALSO PERFORMED ALT ALERT GROUP 15 TEST. NO FAULTS NOTED. NO FLIGHT LEG FAULTS (LAST).

Part: TRANSCEIVER — FAULTED (LOWER NOSE COMPT) · airframe 42,114 hrs · 12,262 cycles

WX RADAR IS DEPICTING A CONSTANT GROUP OF CELLS AT 11 O'CLOCK AND 120NM, 50NM IN DIAMETER, BUT THERE IS NO WEATHER. CELLS DO NOT MOVED. THEY SHOW IN BOTH WX AND WX+T MODES. GROUNDED - YES. UNABLE TO DUPLICATE, REMOVED & REPLACED WXR RT PRECAUTIONARY REF B737-800 AMM 34-43-41. OPS NORMAL.

Part: PITOT TUBE — FAULTY (VERTICAL FIN) · airframe 42,024 hrs · 12,237 cycles

R ELEV PITOT HEAT ILLUM DURING FLT. GROUNDED - YES. CONFIRMED FAULT, R ELEV PITOT HEAT ON. REMOVED & REPLACED R/H FEEL SYSTEM PITOT PROBE PER B737-800 AMM 27-31-94, PROBE HEATER SYSTEM OPS CK NML PER AMM 30-31-00-730-801. ACCOMPLISHED ELEVATOR PITOT SYSTEM LEAK TEST PER AMM 27-31-17-790-801, OPS CK NML.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 41,772 hrs · 12,164 cycles

CLIMBING OUT OF SAN GOT VTK INDICATION AND MAP DSPLY ON CAPT'S ND AND CDU WENT BLANK. COMPLIED WITH QRH FOR FMC FAILURE AND DETERMINED (L) FMC FAIL. POSITIONED FMC SWITCH TO BOTH ON RIGHT AND CONTINUED SINGLE FMC OPERATIONS. GROUNDED - YES. PERFORMED B737-800 FIM 34-61 TASK 801 ON FMC 1 AND NO FAULT FOUND. POSITIONED FMC SWITCH BACK TO BOTH.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 41,086 hrs · 12,004 cycles

A/P P/RST LIGHT ON AUTOLAND ANNUNCIATOR PANEL ILLUMINATED. GROUNDED - YES. FMC'S NO FAULTS, DFCS-CURRENT STATUS-PASS. ADIRS L&R-NO FAULTS. A/P WARNING LIGHT ON AND COULD NOT BE RESET. DURING DFCS BITE-STATUS-AUTOPILOT TEST 11.62 A/P WARNING LIGHT ON BOTH ANNUNCIATORS REMAINED ON. DURING SHAKEDOWN OF WIRES BEHIND FCC-A, BOTH A/P WARNING LIGHTS EXTINGUISHED. SUSPECT WIRING PROBLEM ON E1-1 RACK. RANG OUT AND MERGED WIRING ON E1-1 REF LOG PAGE # 60205804 FOR CONNECTOR D235 DEFECT. VISUAL INSPECTION OF ALL WIRING ON E1-1 SHELF RESULTED IN NO DEFECTS FOUND. REPLACED CONNECTOR D235 ON L/P 60205805, REF MIG-2C'S FOR E1-1 RACK ACCESS, REMOVAL, INSTALLATION, AND LRU OPS TESTS.

Part: COMPUTER — FAULTY (E/E RACK E1-1) · airframe 40,986 hrs · 11,975 cycles

RED 'A/P P/RST' BRIEFLY ILLUMINATED ON BOTH CAPTAIN AND FIRST OFFICER ANNUNCIATOR PANELS DURING TAKEOFF AT APPROXIMATELY 100 KNOTS. CONTINUED TAKEOFF. AUTO PILOT ENGAGED NORMALLY. GROUNDED - YES. REMOVED AND REPLACED FCC 'A' PER B737-800 AMM 22-11-33/401. OPS CK'D FCC 'A' REF MM 22-11-33-400-801. OPS NML. ETOPS SIGNIFICANT SYS-GND VERIFICATION SATISFACTORY.

Part: CONTROL PANEL — FAULTY (FLIGHT DECK) · airframe 40,907 hrs · 11,950 cycles

AUTO PILOT PUSH TO RESET BUTTON WILL NOT RESET. (BUTTON NEXT TO LIGHTS TEST SWITCH). GROUNDED - YES. NO CURRENT FCC A OR B FAULTS. NOTED ON CORRELATING FLIGHT LEG (#2), FCC "B" SET FAULTS 22-11002, 22-11323, AND 22-11006. NO FCC "A" FAULTS WERE SET. PER THEIR APPLICABLE B737-800 FIM 22-11 TASK 810, 22-14 TASK 808, AND 22-11 TASK 807 INITIAL EVALUATION PARAGRAPHS, FAULTS DID NOT REPOPULATE. NO L OR R ADIRS FAULTS/INFLIGHT FAULTS. NOTED THAT FAULTS ARE UNRELATED TO REPORTED FLIGHT DECK EFFECT (SET WHEN AIRSPEED WAS AT <45 KNOTS ON GROUND). PRECAUTIONARILY REMOVED AND REPLACED MODE CONTROL PANEL PER B737-800 AMM 22-11-34. INSTALLATION AND LLM TESTS PASS. ALSO PRECAUTIONARILY REMOVED AND REPLACED CAPTAIN'S AUTOFLIGHT STATUS ANNUNCIATOR PER AMM 22-11-32. INSTALLATION TEST PASSES. ETOPS GROUND VERIFICATIONS SUCCESSFUL.

Part: COMPUTER — NONE (EE RACK, E1) · airframe 40,874 hrs · 11,936 cycles

ON TAXI IN A/P P/RST LIGHT CAME ON AND REMAINED ON. GROUNDED - YES. VERIFIED DISCREPANCY. FOUND MSG 22-11285. ACCOMPLISHED B737-800 FIM 22-15 TASK 804. OPENED/TAGGED 8CBS. RMVD AND INSTALLED NEW FCC A COMPUTER. RMVD TAGS/CLOSED 8CBS. VERIFIED SW WITH IPC 22-11-33-03A. PERFORMED REQUIRED OPS TESTS AND LLM REQUIRED TESTS. REF 22-11-33/401. SYS OPS NML. SYS GROUND VERIFICATION CKS NML. SEAMC JAKE NOTIFIED.

Part: THERMOCOUPLE — FAULTED (APU EGT) · airframe 40,400 hrs · 11,804 cycles

APU FAULT X2 APU NOT STARTING. GROUNDED - YES. BITE CHECK C/W. FOUND FAULT MSG 49-491012 TWICE, AND 49-71147 & 49-71148 EGT 1&2 THERMOCOUPLE LOSS OF EGT SHUTDOWN, OPERATED APU, STARTED AND RAN NORMALY.

Part: RADAR — MALFUNCTIONED (WX SYSTEM) · airframe 39,434 hrs · 11,551 cycles

WX RADAR FAIL PREFLIGHT TEST. GROUNDED - YES. CYCLED C/B WX RADAR TEST GOOD OK FOR SERVICE REF B737-800 FIM 34-43-00-710.

Part: RELAY — FAULTED (START LEVER) · airframe 39,214 hrs · 11,499 cycles

AFTER COMMANDING NORMAL ENG SHUTDOWN WITH #1 FUEL CUTOFF #1 ENG FAIL ILLUMINATED ON EGT & OTHER ENG INDICATIONS NORMAL. GROUNDED - YES. PER B737-800 FIM 73-05 TASK 805 ENG 1 EEC BITE TEST SHOWS ACTIVE FAULT FOR START LEVEL SIGNALS DISAGREE #76-31361. ENG 1 INPUT MONITORING SHOWS START LEVER POS AT IDLE AND START LEVER SEL AT CUTOFF. SW-LOC AT IDLE. SW-XCH AT CUTOFF. FURTHER TROUBLESHOOTING FOUND FAULT WITH R566 ENG1 START LEVER CHA RELAY. REMOVED AND REPLACED R566 RELAY. EEC TEST PASSED. ENG RUN NO FAULTS. REPAIR CONFIRMATION SUCCESSFUL. GRD VERIFICATION SUCCESSFUL. REMOVED AND REINSTALLED FWD L/H AND R/H SIDE NOSE WHEEL WELL PRESSURE PANELS TO F.O.M. IAW B737-800 AMM 53-14-01.

Part: PIN — DAMAGED (RT ENGINE VSV) · airframe 39,186 hrs · 11,492 cycles

WHILE ACCOMPLISHING T.C. SB CFM56-7B-72-0986-1 FOUND 3RD STG VSV SLAB HEAD PIN LIBERATED @ 3 O'CLOCK POSITION ALF CAUSING DAMAGE TO BOOSTER SPOOL ALONG WITH DOWNSTREAM HPC BLADE DAMAGE. #2 POSN. ESN 805120. GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE REF TC 78471000 AND 78471001. DEFECT TRANSFERRED TO SHOP W/O 1872757.

Part: MODULATING VALVE — INOPERATIVE (RIGHT ECS BAY) · airframe 39,175 hrs · 11,490 cycles

RIGHT "PACK" LIGHT ILLUMINATES ON RECALL. GROUNDED - YES. REF B737-800 FIM 21-62 TASK 881 RIGHT TCV LIGHT WAS ON UNTIL RESET. AS A PRECAUTION REMOVED AND REPLACED TEMPERATURE CONTROL VALVE FOR RIGHT PACK REF B737-800 AMM 21-51-10. PERFORMED LEAK CHECK OF RH TCV REF AMM TASK 21-51-10-400-801 F(3)-G. LEAK CHECK GOOD.

Part: SKIN — CRACKED (HORIZONTAL STAB) · airframe 38,760 hrs · 11,387 cycles

RIGHT HORIZONTAL STAB LOWER SKIN IS CRACKED AT STA. 138.70 IN TWO PLACES. (ONE IS .625" LONG AND THE OTHER IS .250" LONG, BOTH ARE MARKED) GROUNDED - YES. CUT OUT DAMAGE AND REPAIRED SKIN IAW B737-800 SRM 55-10-01-2R-11. THIS IS A CATEGORY B REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 TOTAL FLIGHT CYCLES AND 9,000 FLIGHT CYCLE INTERVAL

Part: BULKHEAD WEB — CRACKED (BS 663) · airframe 38,761 hrs · 11,387 cycles

WHILE ACCOMPLISHING REPAIR AT STA 663 PRESSURE WEB FOUND CRACK IN UPPER COMPRESSION CHORD RBL 45 AT FASTENER HOLE GROUNDED - YES. REMOVED CRACK INDICATION DAMAGE BY OVERSIZING FASTENER HOLE IAW ASA EA 800-53EA-23328, FOR REMAINDER OF PRESSURE WEB REPAIR SEE MIG-5 OK261139 WO 1019196 1000/0039. THIS IS A CATEGORY B REAPIR WITH AN INSPECTION THRESHOLD OF 67,387 TOTAL AIRCRAFT CYCLES

Part: BULKHEAD WEB — CRACKED (BS 663) · airframe 38,761 hrs · 11,387 cycles

RH WING AFT SPAR VERTICAL PRESSURE WEB IS CRACKED IN OTBD MACHINED POCKET APPROX RBL 40 GROUNDED - YES. CUT OUT DAMAGED SECTION OF WEB AND REPAIRED IAW B737-800 SRM 57-10-10-2R-3 REPAIR 3. THIS IS A CATEGORY B REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 FLIGHT CYCLES AFTER REPAIR INSTALLATION AND 36,000 FLIGHT CYCLE INTERVAL THERE AFTER.

Part: SHIELD — CORRODED (BS 767-792) · corrosion level 2 · airframe 38,760 hrs · 11,387 cycles

AFT PIT DOOR CUTOUT LOWER SILL FWD SHEILD PANEL HAS CORROSION GROUNDED - YES. FOUND TO HAVE 100% MAT. LOSS. REMOVED AND REPLACED SHEILD PANEL IAW V737-800 SRM 51-40-02-0G-0 W= 1.5", O= .050, R= 0, L= 2", D= 100%

Part: PLATE — CORRODED (AFT CARGO) · airframe 38,760 hrs · 11,387 cycles

AFT PIT L/H TRANSITION HAS MULTIPLE AREAS OF CORROSION STA 727 TO 807 GROUNDED - YES. REMOVED CORROSION, FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-00-53-1A-2, REMOVED AND REPLACED TRANSITION PANEL FROM 727 TO 807 IAW B737-800 SRM 51-40-02-0G-0 W .65 O .040 R .032 L-1.25 D .008

Part: PLATE — CORRODED (AFT CARGO) · airframe 38,760 hrs · 11,387 cycles

AFT PIT R/H TRANSITION HAS MULTIPLE AREAS OF CORROSION STA 727 TO 767 GROUNDED - YES. AFT PIT R/H TRANSITION PANEL CORROSION AT 727D+11 INCHES FOUND TO BE OUT OF LIMITS REMOVED AND REPLACED TRANSTIION PNL FROM 727 TO 767 IAW B737-800 SRM 53-00-53-2R-5 REPAIR 5. W: 2 O: .040 R: .033 L: 20 D: .017

Part: SKIN — CRACKED (HORIZONTAL STAB) · airframe 38,760 hrs · 11,387 cycles

RIGHT HORIZONTAL STAB LOWER SKIN IS CRACKED 1.250" AT STA. 175.50 (MARKED) GROUNDED - YES. CUT OUT DAMAGE AND REPAIRED LOWER SKIN IAW B737-800 SRM 55-10-01-2R-11. THIS IS A CATEGORY B REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 FLIGHT CYCLES AND 9,000 FLIGHT CYCLE INTERVAL

Part: SKIN — CRACKED (HORIZONTAL STAB) · airframe 38,760 hrs · 11,387 cycles

LEFT LOWER HORIZONTAL STAB SKIN CRACKED .250" AT STA. 92.70 (MARKED) GROUNDED - YES. CUT OUT DAMAGE TO SKIN AND REPAIRED IAW B737-800 SRM 55-10-01-2R-11 REPAIOR 11 THIS IS A CATEGORY B REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 TOTAL FLIGHT CYCLES AND 9,000 CYCLE INTERVAL

Part: BLEED VALVE — FAILED (NR 2 ENGINE) · airframe 38,758 hrs · 11,386 cycles

PER TASK CARD N8010004 SUBTASK 10-11-07-839-003 FOUND #2 ENG 5TH STAGE BLEED AIR VALVE FAILED INSPECTION. GROUNDED - YES. REMOVED AND REPLACED ENG #2 BLEED AIR CHECK VALVE (5TH STAGE) PER B737-800 AMM 36-11-02. OPERATIONAL CHECK NORMAL.

Part: BLEED VALVE — FAILED (NR 1 ENGINE) · airframe 38,758 hrs · 11,386 cycles

PER TASK CARD N8010004 SUBTASK 10-11-07-839-003 FOUND #1 ENG 5TH STAGE BLEED AIR VALVE FAILED INSPECTION. GROUNDED - YES. REMOVED AND REPLACED ENG#1 BLEED AIR CHECK VALVE (5TH STAGE) PER B737-800 AMM 36-11-02. OPERATIONAL CHECK NORMAL.

Part: POWER SUPPLY — INOPERATIVE (EMERGENCY LIGHTS) · airframe 38,758 hrs · 11,386 cycles

RIGHT EMERGENCY LIGHT AISLE LIGHTS ROW 4-10 INOPERATIVE. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY POWER SUPPLY WITH BATTERY IAW B737-800 AMM 33-51-06-960-806. OPS CHECK GOOD. NO DEFECTS NOTED AT THIS TIME.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 38,758 hrs · 11,386 cycles

L/H EMERGENCY AISLE LIGHTS ROW 4-16. GROUNDED - YES. REMOVED & REPLACED L/H EMERGENCY AISLE LIGHT BATTERY PACK IAW AMM. 33-51-06.

Part: CIRCUIT BREAKER — OPEN (COCKPIT) · airframe 38,700 hrs · 11,369 cycles

FORWARD LEFT WINDOW HEAT (OVERHEAT) LIGHT CAME ON. CHECKLIST OVERHEAT LIGHT CAME BACK ON AFTER RUNNING CHEKCLIST. GROUNDED - YES. FOUND LEFT FRONT C/B OPEN ON P11 PANEL, GVI C/B ACCESSIBLE WIRING, NO DEFECTS NOTED, RESET C/B REF B737-800 AMM 20-60-01 BITE CK LEFT FWD WHCU, LOGGED LEFT FWD BUS PANEL FAULT, RESET & TEST OK REF FIM TASK 30-40- TASK 801 & 806.

Part: POWER SUPPLY — DISCHARGED (CABIN) · airframe 38,673 hrs · 11,364 cycles

REFRENCE TASK CARD 78233001 - RH FWD OVERWING EMERGENCY LIGHT INOP. GROUNDED - YES. REPLACED L751 REF B737-800 AMM 33-51-06/201. OP-CHECKS GOOD.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 38,600 hrs · 11,345 cycles

CONTR CABIN ZONE TEMP LIGHT ILLUMINATES ON RECALL. GROUNDED - YES. ACCOMP PZTC BITE REF B737-800 AMM 21-61-00-700-806-002. SHOWED FLT DECK TRIM VALVE FAULT DURING THE LAST FLT LEG. FAULT CLEARED DURING VERIFICATION. GROUND VERIFICATION SUCCESSFUL.

Part: PIN — LOOSE (NR 1 ENGINE) · airframe 38,600 hrs · 11,345 cycles

WHILE ACCOMPLISHING T/C 78472010 #1 ENGINE FOUND 4 GUIDE PINS LOOSE IN BOOSTER SPOOL. GROUNDED - YES. REMOVED 4 GUIDE PINS IN #1 ENGINE BOOSTER SPOOL REF B737-800 AMM 72-21-02-300-805-F00. INSPECTED FAN DISK MATING SURFACE AND BOLT HOLE FOR DAMAGE, NO DAMAGE NOTED REF AMM 72-21-02-200-801-F00. INSTALLED #1 ENGINE GUIDE PIN 3 OF 4 IN BOOSTER SPOOL REF AMM 72-21-02-300-805-F00, INSTALLED 4 OF 4, #1 ENGINE GUIDE PIN IN BOOSTER SPOOL IAW AMM 72-21-02-300-805-F00.

Part: ELASTOMER — DEBONDED (NR 1 ENGINE) · airframe 38,600 hrs · 11,345 cycles

WHILE ACCOMPLISHING T/C 784723010 #1 ENGINE FOUND 8 FAN BLADE SPACERS WITH DEBONDING ELASTOMERS MATERIAL. GROUNDED - YES. 8 FAN BLADE SPASERS REPLACED ON #1 ENG REF WO # 1026202 TC 78472010 FOR WORK ACCOMPLISHED.

Part: FMC — MALFUNCTIONED (RIGHT) · airframe 38,238 hrs · 11,239 cycles

ABOUT 3 HRS INTO FLT, THE A/T LIM ANNUNCIATED ABOVE ENGINE CLUSTER, VNAV DISCONNECTED. IAW PREVIOUS WRITE UP LOG PAGE 12089346 JUST AFTER BEGINNING DESCENT A/T LIM WENT AWAY. FMC RETURNED TO NORMAL. VNAV AVAILABLE. GROUNDED - YES. PERFORMED BOTH LEFT AND RIGHT HAND FMC BITE PROCEDURE IAWFIM 34-61 TASK 801. FOUND INFLIGHT FAULT. BOTH IRS HAVE TAT- REASON PERFORMED FIM 34-61 TASK 824 ALSO FIM 34-21 TASK 801 IRS BITE TEST, NO CURRENT FAULTS.

Part: PROBE — FAULTED (LT TAT) · airframe 38,243 hrs · 11,240 cycles

ABOUT 45 MIN INTO FLIGHT, A/T LIM ANNUNCIATED AND VNAV DISCONNECTED. REF PREVIOUS WRITE-UPS ON LOG PAGE 12089346 AND 12089355. WE ALSO LOST ETA AND FUEL ESTIMATES ON ALL FMC PAGES. AT 15,000 FEET ON DESCENT, ALL NAV FUNCTIONS AND FMC INDICATIONS RETURNED TO NORMAL FOR THE REMAINDER OF THE FLIGHT. GROUNDED - YES. REF TSR704688 REMOVED AND REPLACED TAT PROBE REF B737-800 AMM 34-21-06, OPS CHECK GOOD. ACCOMPLISHED LEFT AND RIGHT FMC BITE REF FIM34-61 TASK 801, OPS CHECK GOOD. ALSO ACCOMPLISHED FIM 34-61 TASK 824 ADIRS INPUT FAULT ISOLATION, NO FAULT FOUND. ACCOMPLISHED FIM 34-21 TASK 801 IRS BITE, NO CURRENT FAULTS.

Part: SATCOM — MALFUNCTIONED · airframe 38,204 hrs · 11,231 cycles

UNABLE SAT COMMUNICATION. TRIED MULTIPLE TIMES TO TRANSMIT AND RECEIVE SATCOM ON CAPTAIN'S SIDE AND FIRST OFFICER'S COMM PANEL ON SAT 1 AND SAT 2. DISPATCH COULD HEAR OUR TRANSMISSION WHILE DISPATCH COULDN'T RECEIVE (HEAR) OUR TRANSMISSION. GROUNDED - YES. ACCOMPLISHED B737-800 AMM 23-15-00-730-801 "SATCOM COMMUNICATION SYSTEM TEST", CONTACTED DISPATCH, OPS CK NORMAL.

Part: FAULT CODE — FALSE ACTIVATION (APU) · airframe 38,206 hrs · 11,232 cycles

APU FAULT. GROUNDED - YES. APU FAULT CODE MESSAGE 49-41012. NO APU ROTATION SHUTDOWN. PER B737-800 FIM 49-40 TASK 803, APU FAULT CLEARED, NO OTHER FAULTS NOTED, APU STARTS NORMAL. INTERMITTENT FAULT.

Part: ACTUATOR — FAULTED (RAM AIR EXHAUST) · airframe 38,191 hrs · 11,226 cycles

LH PACK LIGHT ILLUMINATED & RESETS WITH MASTER CAUTION RESET. GROUNDED - YES. PERFORMED PACK /ZONE TEMP CONTROLLER BITE REF B737-800 AMM 21-61-00-700-806-002. FOUND LH RAM AIR ACT FAULT. REMOVED AND REPLACED LH RAM AIR INLET ACTUATOR REF B737-800 AMM 21-51-21/401 OPC PASSED. ETOPS GROUND VERIFICATION SUCCESSFUL.

Part: WARNING LIGHT — FALSE ACTIVATION (LEFT A/C PACK) · airframe 38,181 hrs · 11,220 cycles

LEFT PACK LIGHT REMAINS ILLUMINATED AFTER MASTER CAUTION RECALL OCCURRED AFTER PUSHBACK. GROUNDED - YES. C/W B737-800 FIM 21-53 TASK 821, BITE TESTED GOOD BOTH CHANNELS, FAULT CLEARED, OPS TESTED AIR CONDITIONING SYSTEM IAW B737-800 AMM 21-51-65, OPS GOOD NO FAULTS.

Part: CONTROL VALVE — INTERMITTENT (LT A/C PACK) · airframe 38,169 hrs · 11,218 cycles

AFTER START UPON RECALL LEFT PACK TRIP LIGHT ILLUMINATED. GROUNDED - YES. TROUBLESHOT PER B737-800 FIM 21-53 TASK 821, FOUND LEFT TCV ACTIVE FAULT. REMOVED AND REPLACED LEFT TEMP CONTROL VALVE PER B737-800 AMM 21-51-10 PG 401, SYSTEM LEAK CHECKED AND OPS CHECKED GOOD. ETOPS SIGNIFICANT SYSTEM GOUND TEST SATISFACTORY.

Part: ACTUATOR — FAILED (LT RAM AIR INLET) · airframe 38,163 hrs · 11,214 cycles

AFTER PUSHBACK LH PACK LIGHT ILLUMINATED UPON MC RECALL. GROUNDED - YES. BLOCK TURNBACK FOR DUAL PACK LT'S ON RECALL. BOTH RESET W/ MASTER CAUTION. R/H PACK IS ALREADY ON MEL. RAN PZTC BITE ON BOTH PACKS NR 1 SHOWS RAM AIR ACTUATOR FAULT AMD NR 2 SHOWS TCV FAULT (THIS PACK). REF B737-800 FIM 21-62 TASK 801. BOTH RESET ON VERIFY. DUE TO HISTORY - PRECAUTIONARY NO MEL RELIEF. REMOVED AND REPLACED NR 2 TCV, OPS CHECK GOOD, BITE CHECK GOOD, LEAK CHECK GOOD IAW AMM 21-51-10. REMOVED AND REPLACED LT RAM AIR INLET ACTUATOR. OPS CHECKED NORMAL, BITE CHECKED GOOD IAW AMM 21-51-21. NO PACK LIGHTS ILLUMINATED ON RECALL.

Part: CONTROL VALVE — MALFUNCTIONED (AC BAY) · airframe 38,144 hrs · 11,208 cycles

RT PACK LIGHT ON RECALL. GROUNDED - YES. REMOVED & REPLACED NR 2 TCV, OPS CHECKED GOOD. THIS CLEARS MEL 21-32B.

Part: ACTUATOR — FAULTED (AC BAY) · airframe 38,091 hrs · 11,195 cycles

LEFT PACK LIGHT ILLUMINATES DURING MASTER CAUTION RECALL. GROUNDED - YES. PERFORMED FIM 21-53 TASK 821. L PACK LIGHT ILLUMINATES ON RECALL. PERFORMED PACK TEMP CONTROL BITE PROCEDURE PER FIM 21-62 TASK 801 AND FOUND LT PACK ACTUATOR FAULT. PER FIM 21-62 TASK 801 FAULT RESET AND OPS TEST GOOD.

Part: ACTUATOR — LEAKING (NR 2 ENGINE) · airframe 38,082 hrs · 11,192 cycles

DURING CRUISE TOTAL FUEL REMAINING / QUANTITY STARTED DECREASING AT AN ABNORMAL RATE, FUEL USED SHOWED AN UNEVEN BURN. GROUNDED - YES. DIVERSION TIME 18 MINUTES - PERFORMED ENG WET MOTORING IAW AMM 71-00-00-00 ON NR 2 ENG FOUND RT VSV DRAIN POURING FUEL AT ABNORMAL RATE. RMVD AND REPLACED NR 2 ENG RT VSV ACTUATOR PER AMM 75-31-01-000-802-F00 AND AMM 75-31-01-400-802-F00. OPS AND LEAK CKS GOOD.

Part: CONTROL VALVE — MALFUNCTIONED (AC BAY) · airframe 38,047 hrs · 11,185 cycles

R PACK OUTPUTTING 50 DEG C + AIR COULD NOT GET IT TO COOL. GROUNDED - YES. CONFIG CHANGE REVERSED. REMOVED & REPLACED R/H PACK TCV LK & OPS NORMAL REF B737-800 AMM 21-51-10. ACCOMP PACK/ZONE TEMP CONT. BITE CK NO FAULTS FOUND REF AMM 21-61-00. ACFT RELEASED FROM MEL 21-33E C/N# 05067530 REMOVED.

Part: UNKNOWN — MALFUNCTIONED (AC BAY) · airframe 38,042 hrs · 11,184 cycles

RH PACK ILLUMINATES ON RECALL. EXTINGUISHES WITH MASTER CAUTION REDET. GROUNDED - YES. RH PACK TCV CHECKED AND RELEASED PER MEL 21-33E. RH PACK TCV DEACTIVATED CLOSED. C/N 05067530, CONFIG CHANGE DISCONNECT AND STOW RH PACK TCV CONNECTOR AND MANUALLY CLOSED.

Part: WARNING LIGHT — FALSE ACTIVATION (COCKPIT TEMP) · airframe 37,820 hrs · 11,127 cycles

CONT CAB ZONE TEMP ILLUMINATED ON M/C RECALL. EXTINGUISHES ON RESET. GROUNDED - YES. ON DEFERRAL.

Part: WARNING LIGHT — FALSE ACTIVATION (COCKPIT TEMP) · airframe 37,668 hrs · 11,081 cycles

CONT ZONE TEMP LIGHT ILLUMIATED ON MASTER CAUTION RECAL. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 21-62 TASK 801. ON ZONE TEMP CONTROLLER 2 GOT FLT DECK TRIM AIR VALVE ON BEI AND PREVIOUS FLT. NO FAULTS ON VERIFY. MEL 21-21G CLEARED.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 37,321 hrs · 10,988 cycles

HF2 "FAIL" DISPLAYED WHEN TESTING HF COM. GROUNDED - YES. PERFORMED BITE OF HF2 SYST REF B737-800 AMM 23-11-00-810-801 NO FAULTS FOUND. PERFORMED HF OPS TEST REF AMM 23-11-00-710-801 OPS CHECKS GOOD. DISPLAY NO LONGER SHOWS "FAIL". FUEL TRUCK REMOVED FROM AREA SUSPECT INTERFERENCE FROM TRUCK.

Part: EXCITER — FAILED (APU) · airframe 36,792 hrs · 10,854 cycles

APU FAULT LIGHT ILLUMINATED DURING START. FAULT LIGHT EXTINGUISHED AFTER 5 MINUTES. GROUNDED - YES. APU WOULD NOT START, TRIED TWICE. REMOVED AND REPLACED APU EXCITER UNIT IAW AMM 49-41-31-000-801 AND 49-41-31-400-801, ETOPS GROUND FUNCTIONAL CHECK GOOD IAW AMM 49-11-00-860-801.

Part: PRESSURE SWITCH — FAILED (NR 2 ENGINE) · airframe 36,079 hrs · 10,630 cycles

RIGHT FUEL FILTER BYPASS ON CLIMBOUT FROM AIRPORT. LIGHT EXTINGUISHED AFTER SHUT DOWN. GROUNDED - YES. REMOVED AND REPLACED FFDPS REF AMM 73-34-01. OPS CHECK NORMAL. PERFORMED EEC TEST AMM TASK 73-21-00-700-804-F00. TEST PASS. NO DEFECTS NOTED. PERFORMED IDLE POWER LEAK CHECK AMM TASK 70-00-00-700-801-F00. NO LEAKS DETECTED.

Part: DRIVE UNIT — VIBRATION (WEATHER RADAR) · airframe 36,047 hrs · 10,620 cycles

WX FAIL ANNUNCIATED ON BOTH ND DISPLAYS COUPLED WITH HIGH FREQUENCY VIBRATION FELT IN FLIGHT DECK FLOOR. VIBRATION CEASED WITH WEATHER RADAR DESELECTED. GROUNDED - YES. REPLACED WX ANTENNA DRIVE UNIT PER AMM 34-43-11. OP TEST NORMAL PER AMM 34-43-00.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 36,005 hrs · 10,607 cycles

WX RADAR INOP. WXR FAIL AND ANT AND PWS FAIL ANNUNCIATED ON INBOARD DU. GROUNDED - YES. CYCLED A/C POWER IN REF TO AMM 20-60-99. PERFORMED B737-800 FIM 34-43 TASK 801 NO FAULTS NOTED.

Part: WARNING LIGHT — FALSE ACTIVATION (FUEL BOOST PUMP) · airframe 35,750 hrs · 10,521 cycles

AT CRUISE LFT CTR BOOST PUMP LIGHT CAME ON STEADY WITH 900 LBS. FUEL IN CTR TANK. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 28-22 TASK 801. LEFT CENTER BOOST PUMP OPS CHECK GOOD. ALSO REF 737 SYSTEMS HAND BOOK. FUEL, SECTION 12.010 PAGE 11.

Part: PUMP — LOW PRESSURE (FUEL SYSTEM) · airframe 35,707 hrs · 10,496 cycles

SHORTLY AFTER TAKE OFF #2 MAIN TANK LOW PRESSURE LT (AFT) ILLUMINATED CHECK LIST COMPLETED TURNED PUMP OFF. GROUNDED - YES. ON DEFERRAL.

Part: CONNECTOR — LOOSE (BOOST PUMP) · airframe 35,678 hrs · 10,488 cycles

AFT #2 MAIN TANK BOOST PUMP INOP. FAILED @ FL340 30 MINUTES INTO FLIGHT. GROUNDED - YES. ON INITIAL TROUBLESHOOTING, FOUND GFI RELAY NOT TRIPPED. ACCOMPLISHED FIM TASK 28-22 TASK 816 "NO 2 TANK AFT BOOST PUMP CIRCUIT BREAKER OPEN-FAULT ISOLATION". ON FUEL TANK RT FOUND AFT BOOST PUMP CONNECTOR LOOSE. EXAMINED CONNECTOR AND BOOST PUMP PINS, FOUND NO DAMAGE AND ALL WIRING SECURE. RECONNECTED CONNECTOR AND OPS CHECKED #2 AFT FUEL BOOST PUMP. GROUND VERIFICATION SUCCESSFUL, A/C RELEASED FOR SERVICE.

Part: PROBE — FAILED (NR 2 ENGINE) · airframe 35,418 hrs · 10,432 cycles

REF L/P 11876920, ACCOMPLISH #2 ENGINE EGT PROBE CLEANING. ACCOMPLISH EEC BITE TEST BETWEEN 10-20 CYCLES DURING RETEST IF FAULT EXISTS ON ANY OF THE LAST TEN LEGS PERFORM ELECTRICAL CHECKS ON ASSOCIATED SECTOR AND HARNESSES WITH IN 5 DAYS. GROUNDED - YES. INTERROGATED FMC. T49.5 S2 PROBE READS 3 DEGREES C. ALL OTHER PROBES READ ABOUT 170 DEGREES . PERFORMED ELECTRICAL TESTS OF THE EGT SYSTEM IAW AMM 77-21-01-200-801. T49.5 S2 PROBE IS OUT OF LIMITS. REMOVED AND REPLACED T49.5 S2 BOTTOM RIGHT PROBE IAW AMM 77-21-01/400. S1 31.1, S2 16.3, S3 24.8, S4 35.7. FINAL TEMPERATURES ARE WITHIN LIMITS. THIS CLEARS PLT. T49.5 S2 PROBE IS OUT OF LIMITS. REMOVED AND REPLACED T49.5 S2 BOTTOM RIGHT PROBE IAW AMM 77-21-01/400. S1 31.1, S2 16.3, S3 24.8, S4 35.7. FINAL TEMPERATURES ARE WITHIN LIMITS.

Part: INDICATOR — OUT OF TOLERANCE (PITCH BAR) · airframe 35,193 hrs · 10,370 cycles

CAPT F/D PITCH BAR NOT IN VIEW. GROUNDED - YES. T/S REF B737-800 FIM 22-11 TASK 801, AMM 22-11-00-740-801. OPS CHECK GOOD.

Part: TERMINAL BLOCK — UNSECURE (AUTOPILOT) · airframe 35,204 hrs · 10,374 cycles

AT LEVEL CRUISE FLIGHT AUTOPILOT A DISENGAGED. AUTOPILOT A WOULD NOT RE-ENGAGE. COMPLETED FLIGHT ON AUTOPILOT B. GROUNDED - YES. DFCS SHOWS NUMEROUS FAULTS ASSOCIATED WITH SMYDC-1 MSG 22-11081 FOR CH A THROUGH OUT FAULT HISTORY. NO SMYDC FAULT ON CDS BITE OR HGS. NUMEROUS FAULTS ON GPWS FOR SMYDC THAT MATCHED FLT LEGS WITH DFCS. POWER REMOVED FROM A/C, DURING CONTINUITY CKS FOUND W0111-2051R-24 LOOSE AT TB1109. WIRE REMOVED FOR INSPECTION, NO DEFECTS NOTED, REINSTALLED ON TB1109, VERIFIED SECURED ON TERMINAL BLOCK REF WDM 27-32-12. REINSTALLED SMYDC-1, GPWS, & FCC-A COMPUTER REF B737-800 AMM 27-32-42, 34-46-01, 22-11-33, ALL INSTALLATION TEST PASSED. DFCS LRU & LAND VERIFY PASSED.

Part: THRESHOLD — CORRODED (FUSELAGE) · airframe 34,911 hrs · 10,294 cycles

AFT CARGO DOOR THRESHOLD WEB HAS CORROSION IN PREVIOUS BLENDOUT. GROUNDED - YES. REMOVED CORROSION IAW SRM 53-60-15. ORIG THICKNESS 0.050 REMOVED 0.012 REMAINING MAT 0.038 FOUND TO BE OUT OF LIMITS IAW SRM 53-60-15. TOOL #T82250. REMOVED WEB IAW SRM 51-40-02. LOCATED AND DRILLED NEW WEB IAW SRM 51-40-05 AND BAC DWG 146A8340 REV -. INSTALLED NEW WEB IAW SRM 51-40-2 AND BAC DWG 146A8340 REV-.

Part: LUBRICATION UNIT — STUCK (NR 1 ENGINE) · airframe 34,718 hrs · 10,249 cycles

FWD SUMP SEALING SPOOL ON LUBE UNIT STUCK OPEN AND SEALS ARE CUT, #1 ENGINE. GROUNDED - YES. REPLACED #1 ENGINE LUBE UNIT PER B737-800 AMM 79-21-01. LK CK GOOD.

Part: CASE — DAMAGED (NR 1 ENGINE) · airframe 34,628 hrs · 10,229 cycles

DURING REPAIR OF NR 1 ENGINE FLANGE B SCALLOPED FAN CASE FOUND CASE NOT REPAIRABLE. GROUNDED - YES. REMOVED & REPLACED NR 1 ENGINE. ACCOMPLISHED NR 1 ENGINE DUCT PURGE PER PWRPL-71EA-11276. COMPLETED MIG-2C 316258.

Part: MOUNT — CRACKED (NR 1 ENGINE) · airframe 34,586 hrs · 10,219 cycles

WHILE ACCOMP INLET & FAN BLADE INSP NR 1 ENGINE S/N 892938 FOUND "B" FLANGE SCALLOP MOUNT, OTBD POSN FOR FWD FIRELOOP TRANSPONDER CRACKED. GROUNDED - YES. REMOVED TWO EACH BRACKETS ON EACH SIDE OF DAMAGED AREA. COMPLETED STEPS 5 - 6 OF TASK CARD SBCFM56-7B-72-0580-1. DAMAGED AREA EXCEEDS REPAIR LIMIT CRITERIA.

Part: UNKNOWN — MALFUNCTIONED (APU) · airframe 34,480 hrs · 10,194 cycles

APU FAILED TO START AFTER LANDING W/ "APU FAULT" LIGHT ILLUMINATED. GROUNDED - YES. MAINTENANCE MESSAGE 49-41012 NO APU ROTATION SHUTDOWN SHOWS ON LAST TWO START ATTEMPTS WITH NO CURRENT FAILURES. FOUND FAULTS TO BE INTERMITTENT REF FIM 49-40 TASK 803 AND FIM 49-60 TASK 801. MAINTENANCE HISTORY SHOWS MAINT MSG 49-72101 DATA MEMORY MODULE POWER SHOWS HIGH CURRENT ON LAST TWO START ATTEMPTS. FOUND FAULTS TO BE INTERMITTENT REF FIM 49-70 TASK 805. PERFORMED START UP AND SHUTDOWN OF APU 3 CONSECUTIVE TIMES NO DEFECTS NOTED, NO FAULTS SHOWN.

Part: WIRE HARNESS — FAILED (NR 2 ENGINE) · airframe 34,468 hrs · 10,191 cycles

REF LOG PAGE 12060713 TO ACCOMPLISH EEC BITE TEST FAULT HISTORY BETWEEN 10-20 CYCLES FOR NR 2 ENGINE. FAULT 77-10852 IS STILL ACTIVE. REQUIRES CORRECTION WITHIN 5 DAYS. GROUNDED - YES. REMOVED AND REPLACED NR 2 ENG CJ9 HARNESS, AND NR 2 ENGINE S2 EGT PROBE IAW AMM 77-21-01, AND 73-21-06. THIS CLEARS PLT DEFERRAL.

Part: PROBE — INTERMITTENT (NR 2 ENGINE) · airframe 34,383 hrs · 10,172 cycles

DIAGNOSTICS REPORTS NR 2 ENGINE TREND DATA SHOWS A SHIFT IN EGT INDICATION ERRORS ARE SUSPECT. GROUNDED - YES. DUE TO HISTORY, REMOVED AND REPLACED THE T49.5 S2 PROBE REF AMM 77-21-01/401. PERFORMED EEC TEST REF AMM TASK 73-21-00-700-804-F00 - OPS CK GOOD.

Part: UNKNOWN — MALFUNCTIONED (COCKPIT) · airframe 34,337 hrs · 10,160 cycles

AFTER ENGINE START ATTEMPTED TO PUT GEN1 ON THE BUS WE COULD NOT ESTABLISH ELECTRIC W/ GEN 1 AND SAW THE TR UNIT LIGHT WAS ILLUMINATED. GROUNDED - YES. INTERROGATED CREW FOUND EXTERNAL POWER HAD AN INTERRUPTION RESET TRU 1,2,3 C/BS AFTER SHUTTING DOWN POWER, REINITIALIZED POWER, REF AMM 24-32-11 TRU INSTALLATION TEST WITH APU POWER. TESTED GOOD ALL 3 TRU'S OPS TESTED. IDG NR 1 AND NR 2 WITH NR 1 AND NR 2 ENGINE UNDER GROUND POWER OPS TEST REF 24-11-00 LOAD TESTED GOOD, OPS TESTED GOOD.

Part: HARNESS — DAMAGED (NR 2 ENGINE) · airframe 33,969 hrs · 10,070 cycles

NR 2 ENGINE J9 HARNESS DAMAGED. GROUNDED - YES. REPLACED THE NR 2 ENGINE J9 HARNESS PER AMM 73-21-06/401. ACCOMPLISHED FADEC SYSTEM TEST REF AMM 73-21-00-700-802-F00 5D(3)(A),(B),(C) AND (E). ALL RELATED TESTS PASSED.

Part: ACTUATOR — INOPERATIVE (RAM AIR EXHAUST) · airframe 33,969 hrs · 10,070 cycles

AFTER ENGINE START ON RECALL THE RIGHT PACK LIGHT CAME ON AND WENT OUT WHEN MC WAS PRESSED. GROUNDED - YES. PERFORMED PACK TEMP CONTROL BITE TEST REF FIM 21-62 TASK 801. #2 CONTROLLER LOG FAULT RAM AIR ACTUATOR. WILL NOT RESET. REMOVED/REPLACED #2 RAM AIR ACTUATOR REF B737-800 AMM 21-51-21. OPS CHECK GOOD. NO FAULTS ON RECALL. PACK TEMP CONTROL BITE TEST NORMAL.

Part: WIRE HARNESS — DAMAGED (NR 2 ENGINE) · airframe 33,969 hrs · 10,070 cycles

NR 2 ENGINE MW0311 HARNESS DAMAGED. GROUNDED - YES. REPLACED THE NR 2 ENGINE MW0311 HARNESS PER AMM 73-21-06/401. COMPLETED ALL TEST AND AVM TEST AMM TASK 77-31-00-710-801-F00. CKS NML.

Part: CONNECTOR — DAMAGED (NR 2 ENGINE) · airframe 33,969 hrs · 10,070 cycles

WHILE INTERROGATING NR 2 ENGINE BITE RECENT FAULTS SHOWN: 75-20362, 75-10462, 75-30412, 75-20462. GROUNDED - YES. DURING GVI, FOUND CONNECTORS DP1003 LOOSE AND DIFFICULT TO REMOVE. CONNECTOR DP1003 AND RECEPTACLE AT HPTACC VALVE IS FOUND DAMAGED REF FIM 75-21 TASK 801, 802. REPLACED THE NR 2 ENGINE J10 HARNESS PER AMM 73-21-06/401. ACCOMPLISHED THE FOLLOWING STEPS ON FADEC SYSTEM TEST REF AMM 73-21-00-700-802-F00. ALL RELATED TESTS PASSED. NO FAULTS ON FMCS CDU.

Part: CONTROL PANEL — DEFECTIVE (COCKPIT) · airframe 33,481 hrs · 9,943 cycles

WX RADAR CONTROL PANEL AUTO/MAN PUSH-PUSH SWITCH WILL NOT HOLD SELECTED TO AUTO. (THE SWITCH "HOLDS" IN AUTO BUT THE RADAR STAYS IN MANUAL). GROUNDED - YES. REMOVED AND REPLACED WEATHER RADAR CONTROL PANEL PER AMM REF 34-43-91-000-801/34-43-91-400-801. OP'S CK'S GOOD.

Part: CONTROL VALVE — FAILED (AC BAY) · airframe 33,287 hrs · 9,882 cycles

LEFT "PACK" LIGHT ILLUMINATED ON RECALL AFTER START. GROUNDED - YES. NR 1 PACK TEMP CONTROLLER FFR SHOWS TCV THIS PACK. FAULT HAS HISTORY. REMOVED AND REPLACED LEFT HAND TEMP CONTROL VALVE ASSY IAW AMM 21-51-10. SYSTEM OPS CHECK GOOD. GROUND VERIFICATION GOOD. LEAK CHECK COMPLIED WITH.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 33,222 hrs · 9,867 cycles

AFTER MASTER CAUTION RECALL THE LT PACK LIGHT ILLUMINATED. THE LIGHT CLEARS WITH A RESET. GROUNDED - YES. RELEASED PER MEL 21-32B LT PACK PRIMARY TEMP CONTROL INOP FIM 21-62 TASK 830. LEFT PACK/ ZONE TEMP CONTROLLER HAS FAULT "THIS PACK, TCV" PERFORMED PZTC BITE AND RESET PROCEDURE. VERIFY SHOWS NO FAULTS, CLEARED FAULTS.

Part: MODULE — FAILED (E&E BAY) · airframe 33,029 hrs · 9,813 cycles

APPROXIMATELY ONE HOUR INTO FLIGHT IN LEVEL CRUISE AT FL 360 THE A AUTOPILOT DISENGAGED. WAS ABLE TO REENGAGE A AUTOPILOT. AFTER TEN SECONDS A AUTOPILOT AGAIN DISENGAGED. SWITCH TO B AUTOPILOT WITH NORMAL OPERATION. GROUNDED - YES. PERFORMED DFCS BITE REF FIM 22-11 TASK 801. NO FAULTS CURRENT STATUS. FLIGHT DECK EFFECT FOR THIS FL SHOWED TWO FAULTS BOTH "NO SMYD DATA" MSG 22-11081. INTERMITTENT FAULT REF INITIAL EVAL FIM 22-15 TASK 801. SMYD BITE REF FIM 27-32 TASK 801 SHOWED NO EXISTING FAULTS AND FAULT HISTORY SHOW NO FAULTS FOR THIS FLIGHT LEG. DUE TO HISTORY REMOVED AND REPLACED NR 1 SMYD PER AMM 27-32-42. ALL TESTS NORMAL.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 32,913 hrs · 9,783 cycles

AUTO FAIL AND ALTN LIGHTS ILLUMINATED. GROUNDED - YES. CYCLED SWITCH ON PRESS CONTROL PANEL, LIGHTS CLEARED - ACCOMPLISHED BITE OF THE DIGITAL CABIN PRESSURE CONTROLLERS, REF FIM 21-31 TASK 801 - CONTROLLER NR 2 SHOWED CONTROL LRU FAILURE IN EXISTING FAULTS, NO OTHER FAULTS NOTED - FAULT CLEARED - CONTROLLER SHOWS SYSTEM OK.

Part: BLADE — DAMAGED (NR 2 ENGINE) · airframe 32,709 hrs · 9,724 cycles

NR 2 ENGINE FAN BLADE ROOT HAS CU-NI-IN COATING MISSING, AND WAS OUT OF LIMITS. ALL BLADES EXCEPT NR 4 & 16 IAW T/C 78472002. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 ENGINE FAN BLADES EXCEPT NR 4 AND 16 IAW T/C 78472002.

Part: CONTROL VALVE — FAILED (AC BAY) · airframe 32,500 hrs · 9,653 cycles

AFTER ENGINE START LEFT PACK LIGHT ILLUMINATES WITH MASTER CAUTION RECALL AND EXTINGUISHES WITH RESET. GROUNDED - YES. REMOVED & REPLACED LEFT PACK TEMP CONTROL VALVE REF AMM 21-51-10. BITE AND OPS CHECK GOOD.

Part: ACTUATOR — FAILED (LT RAM AIR) · airframe 32,487 hrs · 9,649 cycles

LEFT PACK CAUTION ILLUMINATES WITH MASTER CAUTION RECALL AND EXTINGUISHES WITH RESET. GROUNDED - YES. REMOVED AND REPLACED THE LT RAM AIR ACTUATOR ASSY REF AMM 21-51-21-000-800 AND AMM 21-51-21-400-801. OPS CHCKS OK.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 32,473 hrs · 9,642 cycles

LEFT A/C PACK ILLUMINATE ON RECALL ON DESCENT CHECKLIST, EXTINGUISHES WITH/ON MASTER CAUTION RESET. GROUNDED - YES. NR 1 PACK ZONE TEMP CONTROLLER SHOWS RAM AIR ACTUATOR ON BIT, GREEN FOR PREVIOUS & VERIFY, FAULT RESET REF FIM 21-62 TASK 801 & 837.

Part: UNKNOWN — MALFUNCTIONED (AUTOPILOT SYS) · airframe 32,232 hrs · 9,571 cycles

AP A DISCONNECTED TWICE IN CRUISE. ALSO CAPT PITCH BAR WAS OUT OF VIEW WITH AP A IN USE. GROUNDED - YES. FAULT FLIGHT REVIEW SHOWED LEG 11 WITH 13 FAULTS RELATING TO NR 1 SMYD. NR 1 SMYD SHOWED FAULT MESSAGE 22-21001 LEGS 11, 33 & 40 ON THE GROUND AND INTERMITTENT. PERFORMED AMM TASK 22-23-00-810-801 NO FAULTS DETECTED, BITE TEST GOOD.

Part: WARNING LIGHT — FALSE ACTIVATION (LT A/C PACK) · airframe 32,129 hrs · 9,538 cycles

ON PRESSING THE MASTER CAUTION RECALL AT THE TOP OF DESCENT, OBSERVED AMBER LT PACK LIGHT ILLUMINATED. FOLLOWED QRH PROCEDURES AND PACK LIGHT EXTINGUISHED AFTER MASTER CAUTION RESET. QRH STATES NO FURTHER ACTION REQUIRED. ALL OTHER SYSTEMS FUNCTIONING NORMALLY. NO FURTHER ISSUES. ACFT GROUNDED. PERFORMED FIM 21-62 TASK 837. PACK ZONE TEMP CONTROLLER 1 SHOWS RAM AIR ACTUATOR FAULT DURING BITE RECALL. NO FAULTS SHOW ON PREVIOUS FLIGHTS. VERIFY COMMAND SHOWS GREEN. FAULT RESET.

Part: FMC — MALFUNCTIONED (COCKPIT) · airframe 32,019 hrs · 9,502 cycles

LEFT FMC FAILED. GROUNDED - YES. ACCOMPLISHED FIM 34-61TASK 807. NO FAULTS NOTED. NO HISTORY.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 31,802 hrs · 9,441 cycles

L PACK LITE CAME ON WHEN MASTER CAUTION RECALL PERFORMED AFTER ENGINE START. GROUNDED - YES. RAN BOTH PACKS- NO FAULTS NOTED. T/S REF FIM 21-61 TASK 801. THIS REMOVES MEL 21-32B.

Part: AUTOLAND SYS — MALFUNCTIONED · airframe 31,687 hrs · 9,409 cycles

ON SHORT FINAL, AUTOLAND APPROACH, ACFT DEVIATED LEFT OF CENTERLINE AND APPROACH WARNING INDICATION DISPLAYED. CRITICAL AREA WAS PROTECTED DUE TO WEATHER. XTM RATE EXCEED DISPLAYED IN RECORDED FAULTS AFTER LANDING. ACFT GROUNDED. BITE CHECKED IAW FIM 22-11 TASK 801, C URRENT STATUS SHOWS NO FAULTS. IAW AMM 22-00-01-730-807, INBOUND CONDITION RELATED TO AUTOLAND, DFCS BITE GRP 20 FAULT REVIEW SHOWS NO FAULTS ON ASSOCIATED FLIGHT LEG. PERFORMED DFCS BITE GRP 49 LAND VERIFY. TESTED NORMAL. PERFORMED BITE LIBRARY TEST (ALL LIBRARY TESTS GRP 60) AND GRP 35 LRU REPLACEMENT TEST FOR FCC (DFCS/AT), ALL TESTED NORMAL. IAW AMM 22-00-01-730-808, IN-FLIGHT HGS CONDITION RELATED TO LANDING, HGS4000 SMM 34-36-00, SECTION 100 SHOWS APCH WARN, XTK RATE EXCEED WITH NO RELATED FAULT CODE. INTERMITTANT FAULT REF FIM 34-36 TASK 807. PERFORMED HGS OPERATIONAL TEST AND SYSTEM TEST PER SMM 34-36-00 SECTION 500. ALL TESTS NORMAL. CLEARS MEL'S 34-44L, 34-99B AND 34-99C.

Part: CONTROL VALVE — FAILED (LT A/C PACK) · airframe 31,453 hrs · 9,351 cycles

AFTER START CHECKLIST, THE LEFT PACK LIGHT ILLUMINATED, MC RECALL. EXTINGUISHES WITH MC RESET. ACFT GROUNDED. PERFORMED CABIN TEMP CONTROLLER BITE IAW FIM 21-61-00-810-801, FLIGHT DECK TRIM VALVE FAILED ON ZONE TEMP CONT 2. REMOVED AND REPLACED THE ZONE TRIM AIR MODULATING VALVE IAW AMM 21-61-21/401, BITE TEST PASSED. NO LEAKS.

Part: HMU — LEAKING (NR 2 ENGINE) · airframe 31,436 hrs · 9,346 cycles

WHILE ACCOMPLISHING AN IDLE NR 2 ENGINE RUN, FOUND FUEL DRIPPING FROM THE HMU JUST ABOVE FWD THE CONNECTOR. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 ENGINE HMU IAW N8473000, N8473001. TESTED IAW AMM 71-00-00-800-811-F00, TABLE 502.

Part: HEATER — LEAKING (FUEL SERVO) · airframe 31,436 hrs · 9,346 cycles

NR 2 ENGINE SERVO FUEL HEATER FAILED A LEAK CHECK 3A. ACFT GROUNDED. REMOVED THE NR 2 ENGINE SERVO FUEL HEATER IAW AMM 73-11-07-000-801. INSTALLED A SERVICEABLE FUEL HEATER IAW AMM 73-11-07-400-801-F00. TEST ACCOMPLISHED IAW AMM 71-00-00-800-811-F00, TABLE 502.

Part: CONNECTOR — DIRTY (EGT) · airframe 31,120 hrs · 9,253 cycles

DIAGNOSTICS REPORTED THE NR 1 ENGINE TREND DATA SHOWS A SHIFT IN DELTA EGT AND EGT HOT DAY MARGIN ALL OTHER PARAMETERS NORMAL. EGT INDICATION ERRORS ARE SUSPECT. ACFT GROUNDED. ACCOMPLISHED A NR 1 ENGINE EGT CONNECTOR CLEANING IAW AMM 77-21-00-140-801, ALL CONNECTORS IN TABLE 2 CLEANED. PERFORMED A NR 1 ENGINE T49.5 PROBE AND EGT SYSTEM INSPECTION IAW AMM 77-21-01-200-801-F00. ALL RESISTANCE READINGS WITHIN MM LIMITS. PERFORMED A NR 1 ENGINE EEC TEST IAW AMM 73-21-00-700-804-F00. ALL TESTS PASSED. ALL TSR STEPS COMPLETE.

Part: CONTROL VALVE — FAILED (NR 2 PACK) · airframe 30,991 hrs · 9,222 cycles

CONTROL CABIN ZONE TEMP LIGHT ILLUMINATES DURING RECALL. THE ZONE TEMP LIGHT EXTINGUISHED ON MASTER CAUTION RESET. ACFT GROUNDED. CONFIRMED FAULT, THE NR 2 PACK/ZONE TEMP CONTROLLER BITE IAW AMM 21-61-00-700-806-002, SHOWS HARD FAIL FLIGHT DECK TCV V143. REPLACED THE TCV AMM 21-61-21, OPS CHECKED NORMAL. NR 1 PACK/ZONE TEMP CONTROLLER SHOWS NO FAULTS.

Part: EGT INDICATION — OUT OF TOLERANCE (NR 2 ENGINE) · airframe 30,951 hrs · 9,207 cycles

FAULT CODE APPEARED ON THE NR 2 ENGINE, FAULT CODE 77-20862, BOTTOM LEFT EGT SIGNAL, T495S3 IS OUT OF RANGE. ACFT GROUNDED. T49.5 S3 PROBE CHANNEL B FAULTING AND SHOWS DASHES ON INPUT MONITORING. FAULTS SHOWN ON EVERY LEG. J10 HARNESS RANG OUT WITH NO RESULTS REF B737-800 WDM 77-21-11. INPUT MONITORING THEN SHOWED A VALUE AFTER RE-ASSEMBLY. DUE TO INTERMITTENT NATURE AND HISTORY, CJ10 HARNESS REMOVED AND REPLACED REF B737-800 AMM 73-21-06. OPERATIONAL CHECKS GOOD, NO FAULTS, AND PROBE VALUES WITHIN TOLERANCE. GROUND VERIFICATION SUCCESSFUL.

Part: WARNING LIGHT — FALSE ACTIVATION (LT A/C PACK) · airframe 30,861 hrs · 9,176 cycles

AFTER ENGINE START CHECKLIST. ON INITIATING MASTER CAUTION RECALL, THE LT PACK LIGHT ILLUMINATED, LIGHT EXTINGUISHED WHEN MASTER CAUTION SYSTEM WAS RESET. ACFT GROUNDED. ACCOMPLISHED FIM 21-61 TASK 801. TCV FAULT CLEARED. RECALL CHECKED GOOD.

Part: FILTER — DIRTY (TEMP SENSOR) · airframe 30,799 hrs · 9,153 cycles

ZONE TEMP CONTROL AMBER LIGHT ILLUMINATED DURING RECALL. RESETS WITH MASTER CAUTION. ACFT GROUNDED. PERFORMED PACK ZONE TEMP BITES, FLT DECK TRIM VLV FAULT SHOWN. CLEARED FAULT, SUBSEQUENT BITES SHOW NO FAULTS. FOUND CABIN TEMP SENSOR FILTER DIRTY, CLEANED THE FILTER, OPS CHECKED NORMAL. NO HISTORY 60 DAYS.

Part: WIRE HARNESS — INTERMITTENT (NR 2 ENGINE) · airframe 30,724 hrs · 9,134 cycles

WHILE PERFORMING FMC CDU INTERROGATION, THE FOLLOWING FAULT DISPLAYED FOR THE NR 2 ENGINE. MESSAGE 77-20862. BOTTOM LEFT EGT SIGNAL IS OUT OF RANGE (T495S3) FLT LEGS 0, 1, 2, 3. ACFT GROUNDED. NR 2 ENGINE T49.5 S3 PROBE CHANNEL B FAULTING AND SHOWS DASHES ON INPUT MONITORING. FAULTS SHOWN ON EVERY LEG. J10 HARNESS RANG OUT WITH NO RESULTS IAW WDM 77-21-11. INPUT MONITORING THEN SHOWED A VALUE AFTER ASSEMBLY. DUE TO INTERMITTENT NATURE AND HISTORY, CJ10 HARNESS REMOVED AND REPLACED IAW AMM 73-21-06. OPS CHECKED GOOD, NO FAULTS, AND PROBE VALUES WITHIN TOLERANCE. GROUND VERIFICATION SUCCESSFUL.

Part: WARNING LIGHT — FALSE ACTIVATION · airframe 30,710 hrs · 9,130 cycles

ELEC LIGHT ILLUMINATED AT GATE. ACFT GROUNDED. POWERED DOWN ACFT, PERFORMED BITE CHECK AND NOTED INTERMITTENT SPCU FAULT DUE TO GROUND POWER ISSUE, CLEARED FAULT AND ELEC LIGHT EXTINGUISHED IAW FIM 24-31 TASK 801, AND FIM 24-34 TASK 802.

Part: CIRCUIT BREAKER — TRIPPED (WINDOW HEAT) · airframe 30,680 hrs · 9,123 cycles

L1 WINDOW OVERHEAT LIGHT ILLUMINATED IN FLIGHT. COMPLIED WITH QRH, LIGHT REMAINED ILLUMINATED WHEN TURNED BACK ON. COMPLIED WITH REMAINING QRH PROCEDURES. ACFT GROUNDED. FOUND THE CIRCUIT BREAKER OPEN. RESET THE CIRCUIT BREAKER IAW AMM 20-60-01 NORMAL OPS RESTORED.

Part: PROBE — MALFUNCTIONED (S3) · airframe 30,494 hrs · 9,075 cycles

NR 2 ENGINE, T49.5 EGT PROBES BEFORE AND AFTER CLEANING READOUT, EGT PROBE S3 SHOWS DASHES. ACFT GROUNDED. PERFORMED FIM 77-31 TASK 803. CLEANED THE CONNECTORS IAW AMM 77-21-00. PERFORMED RESISTANCE CHECK OF J10 TO DP1010, RESISTANCE CHECKED GOOD. PERFORMED RESISTANCE CHECK OF S3 EGT PROBE, RESISTANCE CHECKED GOOD IAW AMM 77-21-00. PERFORMED EEC TEST EEC, TEST PASSED IAW AMM 73-21-00.

Part: WIRE HARNESS — FAULTED (APU) · airframe 30,398 hrs · 9,045 cycles

NO APU BLEED AIR DUCT PRESSURE. ACFT GROUNDED. ACCOMPLISHED AN APU BITE, FAULTS LAST 90 DAYS, 49-41012, AND 49-31016. REMOVED & REPLACED THE APU WIRE HARNESS. OPS GOOD. GROUND VERIFICATION SUCCESSFUL. IAW AMM 49-61-00-700-801, AND 49-61-01/401.

Part: FCU — FAULTED (APU) · airframe 30,148 hrs · 8,976 cycles

FURTHER EVALUATION OF APU COLD SOAKED START WITH FAULT IAW ENGINEERING REQUEST, PERFORMED APU BITE IAW AMM 49-61-00. ONE FAULT FOUND. STARTS OLD FAULT 49-31016 OVERTEMP SHUTDOWN. ACFT GROUNDED. PERFORMED FIM 49-30, TASK 803, STEP B 1-3. LOOKED FOR BLOCKAGE IN INLET, NO BLOCKAGE FOUND. CHECKED MAG DRAIN PLUG, NO PARTICLES FOUND. NO ROTATION PROBLEM AS NOTED. FIM 49-30 TASK 803, STEP B-4 IS FCU. REMOVED AND REPLACED APU FCU, IAW AMM 49-31-11. NO LEAKS NOTED. REMOVED AND REPLACED THE APU LUBE MODULE IAW AMM 49-91-11. NO LEAKS NOTED. PERFORMED BITE CHECK, NO FAULTS FOUND.

Part: INDICATION SYS — OUT OF TOLERANCE (EGT SYSTEM) · airframe 30,137 hrs · 8,974 cycles

PERFORMED TASK CARD 78273000, NR 2 ENGINE HAS FAULT 77-20862; THE BOTTOM LEFT EGT SIGNAL (T495S3) IS OUT OF RANGE, ECONOMIC FAULT. ACFT GROUNDED. REPLACED EGT TEMP PROBE T495S3 FOR #2 ENGINE REF B737-800 AMM 77-21-01. PERFORMED EEC TEST REF AMM 73-21-00-700-804-F00. TEST PASSED. NO FAULTS LOGGED. ALSO OPERATED BOTH ENGINES FOR SEVERAL MINUTES COMPARING EGT READINGS. OPS NORMAL. NO FAULT LOGGED IN EEC BITE RECENT FAULTS.

Part: CONNECTOR — LOOSE (PROBE) · airframe 29,964 hrs · 8,921 cycles

REF T/C 78273000 # 2 ENG MAINT FAULT 77-20862 (THE BOTTOM LEFT EGT SIGNAL IS OUT OF RANGE) - ECONOMIC FAULT. GROUNDED - YES. PERFORMED AN INPUT MONITORING CHECK OF THE #2 ENGINE T49.5 PROBES PER B737-800 FIM 77-21 TASKS 803 AND 805. FOUND S3 BLANK, WITH AN ASSOCIATED FAULT 77-20862 ON LEGS 3 AND 4. PERFORMED A T49.5 PROBE AND EGT SYSTEM INSPECTION AND CLEANING PER B737-800 AMM 77-21-01-200-801-F00 AND 77-21-00-140-801. ALL RESISTANCE VALUES WITHIN LIMITS, BUT FOUND A LOOSE S3 PROBE CONNECTOR. COMPLETED EGT INSPECTIONS AND THE EEC TEST NOW PASSES. PER FIM 71-06 TASK 805 STEP G, REPAIR CONFIMATION - ACCOMPLISHED POWER ASSURANCE CHECK PER AMM 71-00-00-700-813-F00, NO FAULTS NOTED AND PARAMETERS ALL WITHIN LIMITS.

Part: CONNECTOR — DIRTY · airframe 29,953 hrs · 8,919 cycles

GE DIAGNOSTICS REPORTS #2 ENGINE TREND DATA SHOWS A SUDDEN DELTA EGT INCREASE AND EGT HDM DECREASE. EGT INDICATION ERRORS ARE SUSPECT. GROUNDED - YES. ACCOMPLISHED T/C 78273000. #2 ENGINE SHOWS MAINT MSG. 77-20862 "THE BOTTOM LEFT EGT SIGNAL (T495S3) IS OUT OF RANGE". ECONOMIC FAULT. ACCOMPLISHED #2 ENGINE EGT INDICATION SYSTEM TROUBLESHOOTING AND CONNECTOR CLEANING PER B737-800 AMM 77-21-00-140-801. PRE CLEAN READINGS: POST CLEANINGS1 77.4 S1 14.45 S2 45.2 S2 5.75S3 ----- S3 6.22S4 79.53 S4 8.73 POST CLEANING S1 AND S4 SPLIT DUE TO WEATHER/WIND CONDITIONS ON RAMP. REF DEFECT 11762430 PLT FOR FAULT RE CHECK IN 10-20 CYCLES. REF AMM 77-21-00-140-801 ACCOMPLISHED T49.5 AND EGT SYSTEM INSPECTION REF AMM 77-21-01-200-801-F00. FOUND CJ9 HARNESS PIN 8 AND 9 FAIL MEG CHECK. NO OTHER FAULTS FOUND. REMOVED AND REPLACED CJ9 HARNESS REF AMM 73-21-06. ALL TESTS PASS NO NEW FAULTS. OPERATED ENGINE AT IDLE FOR 10 MINUTES. NO NEW MAINT MSG IN BITE. ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.

Part: INDICATOR — FALSE INDICATION (NR 2 ENGINE) · airframe 29,938 hrs · 8,916 cycles

AFTER SHUTDOWN, RED BOX ON #2 ENGINE EGT GAUGE. GROUNDED - YES. PERFORMED AN INPUT MONITORING CHECK OF THE #2 ENGINE T49.5 PROBES PER B737-800 FIM 77-21 TASKS 803 AND 805. FOUND S3 BLANK, WITH AN ASSOCIATED FAULT 77-20862 ON LEGS 3 AND 4. PERFORMED A T49.5 PROBE AND EGT SYSTEM INSPECTION AND CLEANING PER B737-800 AMM 77-21-01-200-801-F00 AND 77-21-00-140-801. ALL RESISTANCE VALUES WITHIN LIMITS, BUT FOUND A LOOSE S3 PROBE CONNECTOR. COMPLETED EGT INSPECTIONS AND THE EEC TEST NOW PASSES. REPAIR CONFIMATION - ACCOMPLISHED POWER ASSURANCE CHECK PER AMM 71-00-00-700-813-F00, NO FAULTS NOTED AND PARAMETERS ALL WITHIN LIMITS.

Part: WIRE HARNESS — FAILED (NR 2 ENGINE) · airframe 29,841 hrs · 8,890 cycles

WHILE PERFORMING T/C 78273000 FOUND MAINT MSG NBR 77-20862 FOR NO#2 ENGINE. THIS IS AN ECONOMIC FAULT (THE BOTTOM LEFT EGT IS OUT OF RANGE, CT495S3). GROUNDED - YES. ACCOMPLISHED T/C 78273000. #2 ENGINE SHOWS MAINT MSG 77-20862 "THE BOTTOM LEFT EGT SIGNAL (T495S3) IS OUT OF RANGE". ECONOMIC FAULT. ACCOMPLISHED #2 ENGINE EGT INDICATION SYSTEM TROUBLESHOOTING AND CONNECTOR CLEANING PER B737-800 AMM 77-21-00-140-801. PRE CLEAN READINGS: S1 77.4, S2 45.2, S3 -----, S4 79.53. POST CLEANING, S1 14.45, S2 5.75, S3 6.22, S4 8.73. POST CLEANING S1 AND S4 SPLIT DUE TO WEATHER/WIND CONDITIONS ON RAMP. ACCOMPLISHED T49.5 AND EGT SYSTEM INSPECTION REF AMM 77-21-01-200-801-F00. FOUND CJ9 HARNESS PIN 8 AND 9 FAIL MEG CHECK. NO OTHER FAULTS FOUND. REMOVED AND REPLACED CJ9 HARNESS REF AMM 73-21-06. ALL TESTS PASS NO NEW FAULTS. OPERATED ENGINE AT IDLE FOR 10 MINUTES. NO NEW MAINT MSG IN BITE. ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.

Part: INDICATOR — FAILED (REFUEL PANEL) · airframe 29,705 hrs · 8,851 cycles

FUELER FOUND CENTER GAGE INDICATOR INOP. GROUNDED - YES. REMOVED AND REPLACED CENTER REFUELING INDICATOR, OPS NML REF AMM 28-41-61-400-801. THIS CLEARS MEL 28-12B.

Part: CIRCUIT BREAKER — TRIPPED · airframe 29,688 hrs · 8,844 cycles

NR 2 ENGINE HPSOV CONTROLLER AND HPSOV INDICATOR CIRCUIT BREAKERS FOUND TRIPPED DURING PRE-FLIGHT. ACFT GROUNDED. INSPECTED THE NR 2 ENGINE HPSOV CONTROLLER AND HPSOV INDICATOR CIRCUIT BREAKERS ON P6-3 E3, E4. NO DEFECTS NOTED, RESET THE CIRCUIT BREAKERS IAW AMM 20-60-01, AND WDM 76-21- 21. ACCOMPLISHED ENGINE RUN, EEC BITE CHECK TEST 13 IAW AMM 71-00-00. ALL GROUND TESTS PASSED. ACCOMPLISHED ACTUATORS TEST 12 IAW AMM 71-00-00. ALL GROUND TESTS PASSED.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 29,651 hrs · 8,832 cycles

AFTER APU START "MAINT" BLUE LIGHT ILLUMINATED. GROUNDED - YES. SHUTDOWN APU. ACCOMPLISHED APU BITE CHECK PER FIM 49-60 TASK 801. FAULT READ LOW OIL QUANTITY. VISUALLY CONFIRMED AT APU OIL SIGHT GAUGE THAT OIL LEVEL IS FULL. PERFORMED APU BITE CHECK AGAIN - OIL QTY FULL, BLUE MAINT LIGHT EXTINGUISHED. RAN APU - BLUE MAINT LIGHT REMAINED OUT.

Part: PROBE — DIRTY (EGT) · airframe 29,269 hrs · 8,736 cycles

FAULT CODE 77-20862 THE BOTTOM LEFT EGT SIGNAL (T495S3) IS OUT OF RANGE ECONOMIC DEFERRED PER T/C 78273000. GROUNDED - YES. DEFERRED CODE PLT, ECONOMIC FAULT 500 FLT HRS, DEFERRED PER T/C 78273000. FOUND T49.5 S3 SIGNAL TEMP HAD ALL DASHES WHEN LOOKING AT CONTROL TEMPS. ACCOMPLISHED EGT CLEANING PER B737-800 AMM TASK 77-21-00-140-801. AFTER CLEANING S3 SIGNAL RETURNED. ACCOMPLISHED B737-800 FIM 77-21 TASK 803. NO FAULTS NOTED. TEMPS WITHIN TOLERANCES.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 29,249 hrs · 8,731 cycles

DURING TAXI IN, THE CAPTAIN`S SIDE FMC FAILED WITH VTK ON DISPLAY. RAN THE QRH, PG 11.3 AND CONFIRMED THAT THE LEFT FMC FAILED. ACFT GROUNDED. OPS CHECKED THE CAPTAIN`S FMC SYSTEM, CHECKED GOOD IAW AMM 34-61-00.

Part: SENSOR — DIRTY (NR 2 ENGINE EGT) · airframe 29,242 hrs · 8,728 cycles

GE DIAGNOSTICS REPORTED THE NR 2 ENGINE TREND DATA SHOWS A SUDDEN DELTA EGT INCREASE AND EGT HDM DECREASE. EGT INDICATION ERRORS ARE SUSPECT. ACFT GROUNDED. ACCOMPLISHED EGT CLEANING IAW AMM 77-21-00-140-801. BEFORE TEMPS: S1/44.39, S2/19.19, S3/18.56, S4/43.64. AFTER TEMPS: S1/25.46, S2/13.91, S3/13.50, S4/25.42. NO DEFECTS NOTED.

Part: WARNING LIGHT — NONE · airframe 29,158 hrs · 8,690 cycles

ZONE TEMP CONTROL CABIN ILLUMINATED ON MASTER RECALL. LIGHT EXTINGUISHES WHEN MASTER CAUTION SYSTEM IS RESET. ACFT GROUNDED. ACCOMPLISHED FIM 21-62 TASK 842. NO FAULTS. PACK OPS NORMAL IAW AMM. 21-00-00.

Part: IDG — LEAKING (NR 1) · airframe 29,148 hrs · 8,688 cycles

WHILE ACCOMPLISHING TSR818719, FOUND THE NR 1 IDG LEAKING OIL FROM CONNECTOR PLUG DP1205 FLANGE. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 ENGINE IDG ASSEMBLY IAW AMM 24-11-11. OPS CHECKED NORMAL IAW AMM 24-11-00-700. OK FOR SERVICE.

Part: COUPLER — FAILED (HF COMMS SYS) · airframe 28,958 hrs · 8,636 cycles

UNABLE TO RECEIVE RECEPTION VOLUME OR SIDE TONE ON HF 1 ON ANY FREQUENCY. HF 2 WORKS NORMALLY. ACFT GROUNDED. R & R THE NR 1 & 2 HF COUPLER IAW AMM 23-11-61-000-801, & AMM 23-11-61-400-801. OPS CHECKED OK.

Part: CONNECTOR — DAMAGED (NR 1 IDG) · airframe 28,886 hrs · 8,615 cycles

LEFT TRANSFER BUSS OFF LIGHT ILLUMINATED AND NR 1 ENGINE DRIVEN GENERATOR DROPPED OFF BUSS. COMPLIED WITH QRH PROCEDURE AND COMPLETED FLIGHT WITH APU POWERING LEFT BUSSES. ACFT GROUNDED. PERFORMED FIM 24-21, TASK 818. FOUND OPEN BETWEEN PINS 6-7, AND 7-1 ON IDG RECEPTACLE DP1205. REMOVED AND REPLACED THE NR 1 IDG ASSY IAW AMM 24-11-11. LEAK CHECKED GOOD, OPS CHECKED GOOD. NO FURTHER DEFECTS NOTED.

Part: FMC — INOPERATIVE (FIRST OFFICER'S) · airframe 28,825 hrs · 8,594 cycles

FIRST OFFICER`S FMC P/RST LIGHT DOES NOT CLEAR WHEN CLEARED FROM LEFT OR RIGHT MCDU KEYPAD. ACFT GROUNDED. REMOVED & REPLACED THE NR 1 FMC IAW AMM 34-61-02. OPS CHECKED NORMAL

Part: WARNING LIGHT — FALSE ACTIVATION (WINDOW HEAT) · airframe 28,657 hrs · 8,543 cycles

RT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED. ACFT GROUNDED. ACCOMPLISHED QRH PROCEDURES, LIGHT EXTINGUISHED, DID NOT COME BACK ON.

Part: SLIDING WINDOW — FAILED (WINDOW HEAT) · airframe 28,663 hrs · 8,546 cycles

RIGHT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED. RAN QRH PROCEDURE, LIGHT ILLUMINATED AGAIN. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 SLIDING WINDOW IAW AMM 56-12-11/401. WINDOW OPS CHECKED AND LEAKS CHECKED GOOD IAW WDM 30-41-11, MOVED TERMINAL TO TAB 2 ON TB5014 FOR NEW WINDOW CODE H15 INSTALLATION. RIGHT SIDE WHCU BITE TESTED GOOD. VERIFIED RIGHT SIDE WINDOW HEAT WORKS NORMAL ON GROUND WITHOUT OVERHEAT LIGHT ON.

Part: WARNING LIGHT — FALSE ACTIVATION (WINDOW HEAT) · airframe 28,659 hrs · 8,544 cycles

RIGHT SIDE WINDOW OVERHEAT LIGHT. EXTINGUISHED AFTER PERFORMING QRH PROCEDURE. ACFT GROUNDED. OPS CHECKED THE RT WINDOW HEAT, NORMAL IAW AMM 30-41-00-710-801.

Part: WARNING LIGHT — FALSE ACTIVATION (WINDOW HEAT) · airframe 28,652 hrs · 8,539 cycles

RIGHT SIDE WINDOW HEAT OVERHEAT LIGHT ILLUMINATED. ACFT GROUNDED. ACCOMPLISHED QRH PROCEDURE. LIGHT EXTINGUISHED.

Part: CONTROLLER — FAILED (WINDSHIELD HEAT) · airframe 28,634 hrs · 8,533 cycles

RIGHT SIDE WINDOW HEAT OVERHEAT LIGHT ILLUMINATED, ON LIGHT EXTINGUISHED ON SHORT FINAL. LIGHT EXTINGUISHED AND ON LIGHT RETURNED DURING TAXI IN. ACFT GROUNDED IAW AMM 30-41-11/401. REMOVED WHCU M320. REMOVED WHCU M322 AND INSTALLED IT ON M320 POSITION FOR THE RIGHT SIDE WINDOW. INSTALLED SERVICEABLE WHCU ON TO M322 POSITION FOR LEFT SIDE WINDOW. BOTH WHCU SYSTEMS TESTED GOOD IAW AMM 30-41-11-710-801.

Part: WARNING MESSAGE — FALSE ACTIVATION (WINDOW HEAT) · airframe 28,609 hrs · 8,525 cycles

R2 WINDOW OVERHEAT ILLUMINATED IN FLIGHT. ACFT GROUNDED. ACCOMPLISHED RESET PROCEDURE IAW QRH. R2 WINDOW HEAT OPS RESTORED TO NORMAL.

Part: HF COMM — MALFUNCTIONED (NR 2) · airframe 28,594 hrs · 8,521 cycles

DURING PREFLIGHT, THE HF 2 SELECTED BOTH ACTIVE AND STANDBY FREQUENCIES SHOWING FAILED WITH NO SIDE TONE OVER SPEAKER. ACFT GROUNDED. PERFORMED FIM 23-11, TASK 803. HF 2 BITE TESTED OK, IAW FIM 23-11, TASK 801. INTERMITTENT FAULT IAW FIM. GROUND VERIFICATION TESTED OK.

Part: TRANSCEIVER — FAILED (HF COMMS) · airframe 28,599 hrs · 8,522 cycles

HF 2 RADIO DISPLAYS FAIL ON BOTH ACTIVE & STANDBY FREQUENCY WITHOUT SIDE TONE TRANSMISSION. ACFT GROUNDED. PERFORMED A BITE CHECK IAW FIM 23-11-801, NO FAULTS. REMOVED AND REPLACED NR 2 HF TRANSCEIVER IAW AMM 23-11-21-000-801 AND 23-11-21-400-801. NO FURTHER FAULTS NOTED. GROUND VERIFICATION GOOD.

Part: PROBE — NO TEST (NR 2 ENGINE) · airframe 28,592 hrs · 8,519 cycles

NR 2 ENGINE MAX POWER ASSURANCE EGT INDICATION IS HIGH AT 65% N1. INDICATION ERROR IS SUSPECTED: S1 = 535, S2 = 558, S3 = 697, S4 = 545. ACFT GROUNDED. INITIAL EVAL UPON RETURN TO HANGAR: T495 = 126.91, S1-113.05, S2-88.53, S3-195.05, S4-109.14. ACCOMPLISHED EGT CLEANING IAW AMM 77-21-00-140-801. VISUAL INSPECTION OK, POST CLEANING RESULTS: T495 = 37.96 , S1- 44.87, S2- 31.03, S3- 31.09, S4- 44.79, EEC TEST PASSED. ALSO ACCOMPLISHED T49.5 PROBE AND EGT SYSTEM INSPECTION IAW AMM 77-21-01-200-801, CJ9 CONNECTOR DP0911 S2 PINS 9 TO GROUND, 10 TO GROUND FAILED INSULATION RESISTANCE TEST IAW STEP (2) TABLE (2). FOUND PROBES S1-S4 AND CJ10 & CJ9 HARNESSES TO BE OUT OF LIMITS PER EGT SYSTEM INSPECTION AMM 77-21-01-200-801-F00. REPLACED ALL 4 PROBES PER AMM 77-21-01/401. OPS CHECK GOOD, REPLACED THE CJ9 & CJ10 HARNESS IAW AMM 73-21-06/401. ALL OPS CHECK OF THE CJ9 & CJ10 HARNESS COMPLETE. ACCOMPLISHED POWER ASSURANCE TEST 5 & ACTUATORS TEST 12 OF AMM 71-00-00-700, ALL INDICATIONS AND PARAMETERS WITHIN LIMITS.

Part: WARNING LIGHT — FALSE ACTIVATION (WINDOW HEAT) · airframe 28,538 hrs · 8,501 cycles

CAPT REPORTS F/O'S SLIDING WINDOW OVERHEAT LIGHT ILLUMINATED. PERFORMED QRH AND F/O'S SLIDING WINDOW HEAT FUNCTIONED NORMALLY AFTER THAT. ACFT GROUNDED. PREFORMED GROUND TEST OF RT SLIDING WINDOW HEAT SYSTEM IAW AMM 30-41-00-701-801. GROUND TESTED OK.

Part: WINDOW — MALFUNCTIONED (COCKPIT) · airframe 28,474 hrs · 8,478 cycles

AT FL 370, THE RIGHT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED. RAN QRH, TURNED SWITCH OFF FOR 3 MINUTES. TURNED SWITCH BACK AFTER APPROX 6 MINUTES OVERHEAT LIGHT CAME BACK ON. TURNED SWITCH OFF FOR THE REMAINDER OF THE FLIGHT. ACFT GROUNDED. PRESSURIZED AIRCRAFT IAW AMM 05-51-91-790-801, AND CYCLED UP AND DOWN FOR 45 MINUTES WHILE OPERATING WINDOW HEAT. NO DEFECTS NOTED. ALT DEACTIVATION USED IAW CHAPTER 5 TABLE 3, ITEM 1. ACCESSED P6-11 AND INSPECTED WIRING FOR ARCING/OVERHEATING DAMAGE NO DAMAGE NOTED IAW W/D 30-41-11. PERFORMED COIL CORD INSPECTION RIGHT NR 2 WINDOW IAW AMM 30-41-00-200-801 NO DEFECTS NOTED. CHECKED RIGHT NR 2 SENSOR AND HEAT ELEMENT WIRING FOR CONTINUITY/SHORT AND RESISTANCE. FOUND SENSOR WIRING WITHIN LIMITS. FOUND NR 2 RIGHT WINDOW HEAT ELEMENT READING 60 OHMS AND CURRENTLY INCORRECTLY TAPPED FOR AN H15 WINDOW READINGS TAKEN FROM D1042A E2-1 SHELF. MOVED WINDOW TAP TO TERMINAL LUG 1 TB5014 FOR H16 WINDOW IAW W/D 30-41-11. INSTALLED THE NR 2 WINDOW HEAT CONTROLLER. ALTERNATE DEACTIVATION REVERSED. OPS CHECKED GOOD IAW AMM 30-41-00-710-801. ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.

Part: WARNING LIGHT — FALSE ACTIVATION · airframe 28,279 hrs · 8,428 cycles

AFTER PUSH BACK DURING MASTER CAUTION RECALL THE MACH TRIM FAIL LIGHT ILLUNINATED AND TURNS OFF WHEN MASTER CAUTION SYSTEM RESET. ACFT GROUNDED. PERFORMED FIM 22-11, TASK 801, MT FAIL LIGHT ON WHEN MASTER CAUTION SWITCH IS PUSHED. CHECKED GOOD. OPS NORMAL. IAW FIM 22-13 TASK 816.

Part: WARNING LIGHT — MALFUNCTIONED (WINDOW HEAT) · airframe 28,110 hrs · 8,382 cycles

RIGHT SIDE WINDOW OVERHEAT LIGHT REMAINED EXTINGUISHED AFTER RUNNING QRH. ACFT GROUNDED. ACCOMPLISHED R2 WINDOW HEAT SYSTEM OPERATIONAL TEST IAW AMM 30-41-00-710-801, TESTED PASSES. REF TSR818563 FOR CORRECTIVE ACTION: WHCU BITE LOGGED 4 WINDOW SENSOR FAULTS. ACCOMPLISHED ALL STEPS OF TSR, ONLY ANOMALY NOTED WAS NO DC 340 ON R2 SENSOR TERMINALS. APPLIED DC340 IW FIM 30-41-811 STEP G.

Part: WARNING LIGHT — FALSE ACTIVATION (WINDOW HEAT) · airframe 28,099 hrs · 8,378 cycles

RIGHT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED. QRH PROCEDURE COMPLETED, LIGHT EXTINGUISHED. ACFT GROUNDED. TURNED ON WINDOW HEAT ALL GREEN ON LIGHTS ILLUMINATED IAW AMM 30-41-41-860-007.

Part: CONTROL UNIT — FAILED (WINDOW HEAT) · airframe 28,036 hrs · 8,357 cycles

RIGHT SIDE WINDOW OVERHEAT ILLUMINATED. RAN QRH. DID NOT ILLUMINATE AGAIN. OVERHEAT OCCURRED DURING CLIMBOUT AROUND 18000 FT, TEMPERATURE ON THE GROUND WAS 34DEG C AT AIRPORT. ACFT GROUNDED. REMOVED AND REPLACED THE RT WINDOW HEAT CONTROL UNIT IAW AMM 30-41-11. OPS CHECKED GOOD. ALL TESTS PASSED.

Part: ACTUATOR — MALFUNCTIONED (RAM AIR EXHAUST) · airframe 28,012 hrs · 8,348 cycles

RIGHT A/C PACK LIGHT ILLUMINATED DURING DESCENT, RECALL RT PACK LIGHT EXTINGUISHED WITH MASTER CAUTION RESET. ACFT GROUNDED. REPLACED THE NR 2 RAM AIR INLET ACTUATOR IAW AMM 21-51-21. OPS CHECKED GOOD. REPLACED THR NR 2 RAM AIR CONTROL TEMP SENSOR IAW AMM 21-51-50. BITE TESTED GOOD.

Part: WIRE HARNESS — MALFUNCTIONED (R2 WINDOW) · airframe 27,986 hrs · 8,339 cycles

RIGHT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED DURING CLIMB THROUGH 19,000 FT. WINDOW HEAT RESET AFTER 5 MINUTES COOLING. ACFT GROUNDED. INSPECTED RT SIDE SLIDE WINDOW HEATER RESISTANCE AND FOUND WITHIN LIMITS AND THE PAT IS SET AT THE CORRECT POSITION IAW WD 30-41-11. REMOVED AND REPLACED THE WIRING HARNESS IAW 30-41-00-200-801 COILED WIRE. PERFORMED WINDOW OPS TEST IAW 30-41-00-710-801. SYS CHECKED NORMAL.

Part: WARNING LIGHT — FALSE ACTIVATION (RT A/C PACK) · airframe 27,951 hrs · 8,327 cycles

RIGHT A/C PACK LIGHT ILLUMINATED ON MASTER CAUTION PRE FLIGHT CHECK. ACFT GROUNDED. PACK-ZONE TEMPERATURE CONTROLLER BITE TEST DONE ON THE RT AND LT SIDE IAW AMM 21-61-00-700-806-002. BITE TESTED GOOD.

Part: INDICATOR — FAILED (FUELING PANEL) · airframe 27,951 hrs · 8,327 cycles

CENTER FUEL REFUELING QUANTITY INDICATOR IS BLANK. FLT DECK READS NORMAL. ACFT GROUNDED. REMOVED AND REPLACED REFUELING CENTER TANK INDICATOR, OPS NORMAL IAW AMM 28-41-61-400-801.

Part: WARNING LIGHT — FALSE ACTIVATION (RT A/C PACK) · airframe 27,946 hrs · 8,326 cycles

ON RECALL PRIOR TO DESCENT, RIGHT PACK LIGHT ILLUMINATED. ACFT GROUNDED. ACCOMPLISHED RESET PROCEDURE IAW QRH. RIGHT PACK LIGHT EXTINGUISHED.

Part: WARNING MESSAGE — FALSE INDICATION (NR 2 HF SYSTEM) · airframe 27,920 hrs · 8,318 cycles

HF 2 RADIO FREQUENCY SHOWS FAILED. ACFT GROUNDED. PERFORMED FIM 23-11, TASK 801, COMMS SYSTEM BITE PROCEDURE. NO FAULTS NOTED. OPS NORMAL.

Part: SLIDING WINDOW — FAILED (R2) · airframe 27,902 hrs · 8,312 cycles

AT 10,000 FEET DURING DESCENT, RECEIVED AN R2 WINDOW OVERHEAT LIGHT. RAN CHECKLIST, LIGHT WENT OUT. ACFT GROUNDED. WINDOW HEAT SYSTEM TEST COMPLETED IAW AMM 30-41-00-710-801, TESTED GOOD. WHCU BITE COMPLETED IAW FIM 30-41, TASK 801. BITE HISTORY SHOWS WINDOW SENSOR FAULT. WHCU HAS BEEN CHANGED IN THE PAST. REMOVED AND REPLACED THE NR 2 SLIDING WINDOW IAW AMM 56-12-11. ADJUSTMENT LEAK AND HEAT OPS CHECK GOOD.

Part: INDICATOR — MALFUNCTIONED (FUEL QTY) · airframe 27,890 hrs · 8,309 cycles

FUELER REPORTED THE CENTER TANK REFUEL QUANTITY INDICATOR IS BLANK. ACFT GROUNDED. PERFORMED RESET OF 2 CIRCUIT BREAKERS FOR CENTER TANK REFUEL QUANTITY INDICATOR. CENTER TANK INDICATOR POWERED ON. PERFORMED OPS TEST OF REFUEL QUANTITY PANEL. OPS TESTED GOOD. PERFORMED FQIS BITE. NO FAULTS. GROUND TEST GOOD IAW FIM 28-21 TASK 804. NO HISTORY IN LAST 30 DAYS.

Part: CONTROL UNIT — FAILED (R2 WINDOW HEAT) · airframe 27,879 hrs · 8,305 cycles

RIGHT SIDE WINDOW R2 OVERHEAT DURING DESCENT. QRH RESET NOT SUCCESSFUL. ACFT GROUNDED. REMOVED AND REPLACED R2 WINDOW HEAT CONTROL UNIT IAW AMM 30-41-11. TESTED GOOD.

Part: EXCITER — FAULTED (APU) · airframe 27,781 hrs · 8,280 cycles

APU FAULT LIGHT ON START. FOLLOWED QRH PROCEDURES. STILL HAD FAULT LIGHT. ACFT GROUNDED. ON APU START UP, FOUND FAULT 49-41180, IGNITION UNIT CIRCUIT SHOWS HIGH CURRENT. IAW FIM 49-40 TASK 804, REPLACED EXCITER UNIT IAW AMM 49-41-31. TO ADDRESS PREVIOUS FAULT 49-41011, NO FLAME SHUTDOWN, ALSO REPLACED APU IGNITER PLUG IAW AMM 49-41-51, AND IGNITER PLUG LEAD IAW AMM 49-41-52. ALL FAULTS CLEARED. APU OPERATES NORMAL IAW AMM 49-11-00.

Part: HF COMM — LOCKED (COCKPIT) · airframe 27,741 hrs · 8,272 cycles

NR 1 HF INOP. GROUNDED - YES. PERFORMED BITE CHECK, REF AMM 23-11 TASK 801. PERFORMED BITE OF BOTH HF TRANSCEIVERS. FOUND NR 1 LOCKED. CYCLED POWER TO NR 1 SYSTEM. PERFORMED OPERATIONAL SYSTEM TEST, SYSTEM OPS CHECK NORMAL ON GROUND. GROUND VERIFICATION CHECKS GOOD.

Part: WARNING LIGHT — FALSE ACTIVATION (NR 2 A/C PACK) · airframe 27,732 hrs · 8,269 cycles

NR 2 PACK LIGHT ON, RECALL, EXTINGUISHES AFTER RESET. ACFT GROUNDED. RT PACK TEMP CONTROL INOPERATIVE. PERFORMED PACK, ZONE TEMP CONTROL BITE TEST IAW AMM 21-61-00-700-806-002. RAM AIR ACTUATOR WAS FAULTED ON PREVIOUS LEG. PERFORMED FIM 21-53 TASK 804, AFTER PACK OPERATION ON GROUND FOR ONE HOUR, NO FAULTS. NO PREVIOUS HISTORY IN 30 DAYS ON RT PACK. CHECKED GOOD.

Part: SEAL — DAMAGED (NR 1 ENGINE) · airframe 27,589 hrs · 8,220 cycles

NR 1 ENGINE CHIP DETECTOR INDICATION. ACFT GROUNDED. ACCOMPLISHED AMM 79-00-00-200-804-F00 H. (7)(L)(2)(B). FOUND DAMAGE TO AIR/OIL SEAL. ENGINE REQUIRES REPLACEMENT. REMOVED AND REPLACED NR 1 ENGINE.

Part: CONNECTOR — LOOSE (APU) · airframe 27,492 hrs · 8,195 cycles

APU INOP, NO ROTATION WITH FAULT LIGHT ON. GROUNDED - YES. APU BITE SHOWS NUMEROUS "NO FLAME SHUTDOWN" MSG 49-41011 AND "FCU RESOLVER CIRCUIT SHOWS BAD" MSG 49-31175. CONFIRMED FAULT, APU NO ROTATION INOP FOLLOWED BY FAULT LIGHT. ACCOMPLISHED FIM 49-32 TASK 805 FAULT ISOLATION, FOUND P22 AT FUEL CONTROL UNIT LOOSE. SECURED P22 ELECTRICAL CONNECTOR, APU GROUND FUNCTIONAL CK NML REF AMM 49-61-00.

Part: WARNING LIGHT — ILLUMINATED (STAB) · airframe 27,478 hrs · 8,191 cycles

STAB OUT OF TRIM LIGHT ON IN DESCENT FL 330 DISENGAGED AP AND HAND FLEW. ACFT GROUNDED. PERFORMED FIM 22-11 TASK 801 DFCS BITE PROCEDURE FAULT HISTORY SORTED BY FLIGHT DECK EFFECT FOUND FAULT CODE 22-11177 PRIMARY STAB TRIM ELEC ACTUATOR. PERFORMED LR TEST FOR STAB TRIM TEST PASSED STAB TRIM OPS NORMAL NO OTHER DEFECTS NOTED.

Part: WARNING LIGHT — FALSE ACTIVATION (RT A/C PACK) · airframe 27,473 hrs · 8,189 cycles

DURING DESCENT, PRESSED RECALL AND RECEIVED A RIGHT PACK LIGHT ILLUMINATION. IAW LIST PRESSED MASTER CAUTION, LIGHT EXTINGUISHED CONTINUED TO DESTINATION. ACFT GROUNDED. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE IAW AMM 21-51-00-700-803. NR 2 CONTROLLER SHOWED NO FAULTS. NR 1 CONTROLLER SHOWS PREVIOUS FLIGHT HISTORY OF PACK TCV FAULT. DURING BITE VERIFICATION, FAULT CLEARED & DID NOT RETURN. GROUND VERIFICATION SUCCESSFUL. NO HISTORY.

Part: SKIN — CRACKED (HORIZONTAL STAB) · airframe 27,465 hrs · 8,186 cycles

RIGHT HORIZONTAL STAB LOWER SKIN HAS CRACK INDICATION INBD OF RIB STA 147.90. ACFT GROUNDED. REMOVED THE DAMAGE AND ACCOMPLISHED DOUBLER REPAIR IAW SRM 55-10-01-2R-11, FIG 204, REPAIR 11.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 26,214 hrs · 7,861 cycles

SINGLE PDC OPERATION MESSAGE. APPROXIMATELY 5 MINUTES LATER RIGHT NAVIGATION DISPLAY LOST NAVIGATION DISPLAY OR NAVIGATION COURSE MAGENTA LINE. FOLLOWED QRH, FMC BOTH ON 1. ALL DATA RESTORED TO NORMAL. ACFT GROUNDED. PERFORMED BOTH FMC BITES IAW FIM TASK 34-61 TASK 801. NO FAULTS FOUND ON EITHER COMPUTER. REBOOTED BOTH FMC COMPUTERS. ACCOMPLISHED BITE. NO FAULTS FOUND IAW FIM 34-61 TASK 807. SOFTWARE FAULTS. FMC OPS NORMAL.

Part: SKIN — CRACKED (LT HORIZ STAB) · airframe 26,116 hrs · 7,834 cycles

TWO CRACKS POSSIBLE LT LWR HORIZ STAB SKIN AT APPROX L/E STA 161.04. 23.5" & 30.5"AFT OF FRONT SPAR. GROUNDED - YES. ACCOMPLISHED HFEC ON LT HORIZ STAB LOWER SKIN AT APPROX L/E STA 161.04 23.5" AND 30.5" AFT OF FRONT SPAR, VERIFIED CRACK INDICATION AT BOTH LOCATIONS REF NDT MANUAL PART 6 51-00-00 PROCEDURE 23. APPLIED PAINT STRIPPER REF AMM 51-21-11. REMOVED LT STAB L/E. REMOVED STRIPPER AND PAINT AT CRACK LOCATIONS. MARKED END OF CRACKS WITH DRILL START. REMOVED RIVETS AT RIB FOR REPAIR DOUBLER REF SRM 55-10-01-2R-11 REPAIR 11. CUT OUT DAMAGED SKIN AREAS AND INSTALLED EXTERNAL DOUBLER ON LT HORIZ STAB LOWER INSPAR SKIN PER SRM 55-10-01-2R-11 REPAIR 11.

Part: IDG — FAILED (NR 2) · airframe 26,088 hrs · 7,825 cycles

DURING AFTER START CHECKLIST, FOUND THE NR 2 GENERATOR WILL NOT CONNECT. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 IDG IAW AMM 27-11-11 & 24-11-11. OPS CHECKED GOOD. NO LEAKS FOUND.

Part: STARTER — FAILED (NR 2 ENGINE) · airframe 25,854 hrs · 7,758 cycles

ATTEMPTED TWO STARTS ON NR 2 ENG, START PRESSURE WAS GOOD NO N2 ROTATION ON EITHER START. GROUNDED - YES. REMOVED AND REPLACED NR 2 ENG STARTER REF AMM 80-11-01. CHECKED MAG PLUG ON OLD STARTER CHECKS CLEAN. ACCOMPLISHED TEST NR 1 AND NR 3A REF AMM 71-00-00 CHECKS GOOD.

Part: UNKNOWN — MALFUNCTIONED (WEATHER RADAR) · airframe 25,306 hrs · 7,584 cycles

IN CLEAR AIR THE RADAR SHOWS LIGHT WEATHER RETURNS IN AUTOMODE, WEATHER AND WEATHER+T, IN THE 3 TO 7 MILE DISTANCE. REGARDLESS OF THE RANGE SELECTED. THEY APPEAR IN BOTH CAPTAIN AND F/O RADAR DISPLAYS. MANUAL MODE APPEARS NORMAL. ACFT GROUNDED. PERFORMED BOTH OPS TEST AND SYS TEST OF WEATHER RADAR SYS. TESTS GOOD, REF AMM 34-43-00.

Part: WARNING LIGHT — FALSE ACTIVATION (COCKPIT) · airframe 25,287 hrs · 7,577 cycles

ZONE TEMP LIGHT ON CONTROLLER CABIN. ACFT GROUNDED. PERFORMED PACK/ZONE TEMP CONTROLLER BITE TEST. CLEARED FAULT, ZONE TEMP LIGHT NO LONGER ILLUMINATED IAW FIM 21-62, TASK 801.

Part: KEYBOARD — DAMAGED (FLIGHT DECK) · airframe 25,244 hrs · 7,556 cycles

"F" KEY MISSING FROM RIGHT MCDU. ACFT GROUNDED. REMOVED AND REPLACED MCDU KEYBOARD IAW AMM 34-61-01. OPS NORMAL.

Part: WINDOW — ARCED (L1) · airframe 25,146 hrs · 7,526 cycles

AT FL370 2.5 HOURS INTO FLT, NOTED ELECTRICAL ARCING SOUND FROM CAPTAIN'S FWD WINDSCREEN, TURNED OFF "FWD WINDOW HEAT" ON CAPTAIN'S SIDE AND ARCING SOUND STOPPED. CAME BACK ON INTERMITTENTLY WHEN SWITCHED ON. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 WINDOW IAW AMM 56-11-11-000-801 AND AMM 56-11-11-400-821 STEPS 3A THRU 3G. COMPLETED INSTALLATION OF THE NR 1 WINDOW IAW AMM 56-11-11-400-821 STEPS 3H THRU 3I. OPS TEST GOOD.

Part: WARNING MESSAGE — FALSE ACTIVATION · airframe 24,860 hrs · 7,434 cycles

HGS APPROACH WAS SUCCESSFUL. AUTOLAND UNSUCCESSFUL. APPROACH WARNING OCCURRED AT JUST UNDER 100' AGL. AIRCRAFT FLEW APPROACH FINE UNTIL APPROXIMATELY 100 FEET. THE TRIM SEQUENCE APPEARED TO BE NORMAL. ACFT GROUNDED. NO FAULTS LOGGED IN DFCS A & B. HGS LOGGED NR 2 RAD ALT. ACCOMPLISHED NR 2 RADAR ALTITUDE OPS CHECK, IAW AMM 34-33-00, TEST PASSED. LAND VERIFY TEST AND HGS OPS TEST PASSED, IAW LWMP CHECKLIST IAW AMM 22-00-01. ACFT REMAINS CATIIIA AUTOLAND & HGS. VERIFIED STATUS SCREW POSITION.

Part: ENGINE — FAULTED (NR 1) · airframe 24,819 hrs · 7,422 cycles

PERFORMED TC 78273000, NR 1 ENGINE FOUND FAULT (LONG TERM) 74-30971, APL INPUT VOLTAGE L EXCITER OUT OF RANGE. GROUNDED - YES. ACCOMPLISHED FIM 74-21 TASK 801. FAULT IS NO LONGER ACTIVE OR PRESENT. ACCOMPLISHED IGNITION SYSTEM AUDIBLE TEST, IAW AMM 74-00-00-750-801-F00. NO FAULTS PRESENT.

Part: ENGINE — FAULTED (NR 1) · airframe 24,819 hrs · 7,422 cycles

PERFORMED TC78273000, NR 1 ENGINE, FOUND FAULT 73-31441, DEU 2 DATA IS MISSING. ACFT GROUNDED. PERFORMED FIM 73-24 TASK 815. BOTH ENGINES EEC TEST PASSED. IN ADDITION PERFORMED ENGINES 1 AND 2 GROUND RUNS. ACTIVE FAULT 73-31441 CLEARED. NO NEW FAULTS LOGGED. ENGINE RAN, IAW AMM 71-00-00/501. PERFORMED BOTH ENGINES EEC TEST AFTER RUN. SYSTEM CHECKED NORMAL.

Part: CONNECTOR — DIRTY (NR 1 ENGINE) · airframe 24,763 hrs · 7,406 cycles

PERFORMED TASK CARD 78273000, NR 1 ENGINE HAD LONG TIME FAULT 75-20831 - THE T3 SIGNAL IS OUT OF RANGE. ACFT GROUNDED. IAW FIM 75-33, TASK 802. ACCOMPLISHED INITIAL EVALUATION IAW FIM 75-36, TASK 802, STEP E. FAULT ACTIVE. CLEANED CONNECTORS DP0905 AND DP1005. CHECKED RESISTANCE AT T3 SENSOR CHANNELS A AND B. RESISTANCE WITHIN LIMITS. RESECURED CONNECTORS. REPAIR CONFIRMATION TEST OK.

Part: SATCOM — INOPERATIVE · airframe 24,650 hrs · 7,370 cycles

SATCOM INOPERATIVE. ACFT GROUNDED. ACCOMPLISHED SATCOM RESET PROCEDURE PER QRH. SATCOM OPS RESTORED NORMAL.

Part: PRESSURE SWITCH — FAILED (NR 2 FUEL SYSTEM) · airframe 24,526 hrs · 7,336 cycles

DURING CRUISE AT FL 360, NR 2 ENGINE FUEL FILTER BYPASS LIGHT ILLUMINATED. FUEL TEMP -2*C. ACFT GROUNDED. REMOVED AND REPLACED NR 2 ENGINE FUEL FILTER DIFFERENTIAL PRESSURE SWITCH. GROUND VERIFIED OPS CHECK AND LEAK CHECKED GOOD IAW AMM 73-34-01-000-801-F00 & 73-34-01-400-801-F00.

Part: ACTUATOR — FAILED (CENTER FUEL TANK) · airframe 24,070 hrs · 7,204 cycles

FUEL IMBALANCE AT FL370, RAN QRH 12.2 CROSSFEED SELECTOR INOPERATIVE. FOUND C/B CROSSFEED VALVE POPPED. BOTH ENGINES SEEMED TO BE RUNNING ON LT TANK. FUEL IMBALANCE QUICKLY GREW TO 2000 POUNDS. DIVERTED, NORMAL LANDING. ACFT GROUNDED. DIVERSION - 16 MINUTES. PERFORMED CROSSFEED VALVE OPS TEST, REF AMM 28-22-21-710-801, OPS TEST GOOD. REMOVED ACTUATOR FUEL CROSSFEED VALVE, REF AMM 28-22-21-000-801. INSTALLED ACTUATOR FUEL CROSSFEED VALVE, REF AMM 28-22-21-400-801. PERFORMED CROSSFEED VALVE OPS TEST, OPS TEST GOOD, REF AMM 28-22-21-710-801. COMPLIED WITH CONDITIONAL INSPECTION, AMM 05-51-48-211-801 AND 05-04-210-021, NO INSPECTION REQUIRED.

Part: WARNING LIGHT — FALSE ACTIVATION · airframe 23,972 hrs · 7,174 cycles

AUTOPILOT, AUTOTHROTTLE, FMC TEST LIGHTS DO NOT ANNUNCIATE UPON TEST OF CAPTAINS PANEL AND F/O PANEL. ACFT GROUNDED. FOUND "WARN LIGHT, BATTERY, CB OUT ON P18-1 D1. INSPECTED AREA BEHIND CB IN P18-1, PANEL, NO DISCREPANCIES FOUND. RESET CB, REF AMM 20-60-01. OPS CHECK OF CAPT'S AND FO'S AUTOFLIGHT STATUS ANNUNCIATOR NORMAL, REF AMM 22-11-32.

Part: INDICATOR — FAILED (FUEL QUANTITY) · airframe 23,941 hrs · 7,163 cycles

REPORTED BY FUELER CENTER WING FUEL TANK QTY INDICATOR WILL NOT TEST. ACFT GROUNDED. CURRENT STATUS, NO PRESENT FAULTS. NO IN-FLIGHT FAULTS. GROUND TEST PASSES. CTR TANK EMPTY COMPENSATOR CAP 57.94 PF TANK UNIT CAP 572.1 PF AT REFUELING STATION CENTER TANK REFUELING GAUGE DOES NOT GO INTO TEST MODE. VERIFIED ALL C/B'S CLOSED. FIM FAULT CODE 282 011 43. WHICH DRIVES YOU TO FIM 28-21, TASK 802. REFUEL QUANITY INDICATOR DISPLAYS INCORRECTLY WHEN TEST SWITCH IS PRESSED. SUSPECT BAD CENTER REFUEL QTY INDICATOR N195. REPLACED REFUEL GAUGE REF AMM TASK 28-41-61-000-801 & 28-41-61-400-801. OP'S CHECKED NORMAL.

Part: SWITCH — FAILED (THRUST REVERSER) · airframe 23,928 hrs · 7,158 cycles

ON TAXI IN NOTICED REVERSER 2 LIGHT ILLUMINATED. CYCLED NR 2 THRUST REVERSER AND LIGHT EXTINGUISHED AND THEN REILLUMINATED. AFTER BEING AT THE GATE WITH ENGINES SHUTDOWN FOR 10 MINUTES LIGHT EXTINGUISHED. ACFT GROUNDED. REPLACED RT AUTOTHROTTLE SWITCH PACK REF AMM 76-11-07/401. ALL FUNCTIONAL/RESISTANCE CHECKS OK. NR 2 THRUST REVERSER SYS. OPS CHECK OK REF AMM 78-31-00-700-800-F00. THIS CLEARS MEL 78-1B.

Part: SENSOR — FAULTED (WINDOW HEAT) · airframe 23,920 hrs · 7,153 cycles

LEFT SIDE WINDOW OVERHEAT IN FLIGHT. RAN QRH MASTER CAUTION LIGHT DID NOT ILLUMINATE. RESET SWITCH NO FURTHER OVERHEATS NOTED. ACFT GROUNDED. SENSOR FAULT LOGGED IN FFR. LT SIDE WINDOW HEAT CONTROLLER BITE CKS GOOD. LT SLIDING WINDOW HEAT OPS CKS NORMAL IAW AMM 30-41-00-710-801.

Part: FUEL CONTROL — FAILED (APU) · airframe 23,737 hrs · 7,097 cycles

CSS REQUEST ON DISPATCH RELEASE. FIRST START AT 36000 FT APU FAULT LIGHT ILLUMINATED. FAULT LIGHT EXTINGUISHED IMMEDIATELY AFTER SWITCH POSITION TO OFF. SECOND START 3 MINUTES LATER SUCCESSFUL. ACFT GROUNDED. APU INOPERATIVE CDU FAULT CODE 49-31175 - FAULT LIGHT FCU RESOLVER CIRCUIT SHOWS BAD. NO OBVIOUS DAMAGE TAIL AREA. REPLACED APU FCU IAW AMM 49-31-11. LEAK AND OPS CK GOOD.

Part: PRESSURE SWITCH — FAILED (HYD SYSTEM) · airframe 23,694 hrs · 7,088 cycles

A-AUTOPILOT WILL ONLY ENGAGE FOR ABOUT 5 SECONDS. IT APPEARS THAT THE ASSOCIATED AUTOPILOT TRIM IS NOT WORKING. B-AUTOPILOT WORKS NORMALLY. ACFT GROUNDED. DFCS BITE T/S INDICATED HYDRAULIC PRESSURE SWITCH -1 FAILURE. R & R SAME. OPS GOOD, REF AMM 22-11-40.

Part: WARNING LIGHT — FALSE ACTIVATION · airframe 23,682 hrs · 7,085 cycles

ON AFTER START ZONE TEMP LIGHT ON RECALL, LIGHT OUT WITH MASTER CAUTION RESET. ACFT GROUNDED. ACCOMPLISHED BITE OF THE PACK/ZONE TEMP CONTROLLERS, REF FIM 21-62, TASK 801. FOUND NUISANCE FAULT ON THE NR 2 PACK/ZONE TEMP CONTROLLER FOR THE FLIGHT DECK TRIM VALVE FAULT CLEARED, RAN APU & PACKS, TEMP CONTROL OPS NORMAL. OK FOR CONTINUED SERVICE, CLEARS MEL 21-21F.

Part: HMU — FAILED (NR 2 ENGINE) · airframe 23,669 hrs · 7,082 cycles

HISTORY OF NR 2 ENGINE FAULT CODE 75-10582 AND 75-20582. ACFT GROUNDED. REMOVED HMU IAW T/C N8473000. INSTALLED SERVICEABLE HMU IAW T/C N8473001. NO CURRENT FAULTS NOTED.

Part: CONTROL VALVE — FAILED (LT A/C PACK) · airframe 23,631 hrs · 7,070 cycles

LEFT SIDE PACK CONTROL TRIP. RESET DURING MASTER CAUTION RESET. ACFT GROUNDED. LT PZTC LOGGED TCV FAULT. TCV PASSES INITIAL BITE CHECK. R & R LT PACK TCV. OPS CHECK NORMAL, REF AMM 21-51-00.

Part: WIRE HARNESS — FAILED (NR 2 ENGINE) · airframe 23,620 hrs · 7,068 cycles

ON TAXI IN, NR 2 ENGINE CONTROL LIGHT CAME ON. ACFT GROUNDED. ACCOMPLISHED BITE. FOUND FAULT CODE 75-20582, TBV DEMAND AND POSITION SIGNALS DISAGREE. R & R NR 2 ENGINE J10 HARNESS IAW AMM 73-21-06. OPS CHECK NORMAL.

Part: EEC — MALFUNCTIONED (NR 2) · airframe 23,530 hrs · 7,038 cycles

NR 2 ENGINE CONTROL LIGHT ILLUMINATED ON TAXI. ACFT GROUNDED. ACCOMPLISHED FIM TASK 73-06-801, NR 2 ELECTRONIC ENGINE CONTROL LOGGED CH A FAULTS 75-10532 AND 75-10582. ACCOMPLISHED FIM TASKS 75-22-801 AND 75-23-801 ACTUATOR TEST, NO FAILS LOGGED. INSPECTED NR 2 ELECTRONIC ENGINE CONTROL CONNECTOR FOR SECURITY, NO DEFECTS NOTED. ENGINE IDLE TEST OK. GROUND VERIFICATION TEST OK.

Part: EEC — FAILED (NR 2 ENGINE) · airframe 23,535 hrs · 7,039 cycles

NR 2 ENGINE HAS HISTORY OF INTERMITTENT ENGINE CONTROL LIGHT ILLUMINATION WITH FAULT MESSAGES 75-10582 AND 75-20582 SET. ACFT GROUNDED. ENGINEERING REQUEST ACCOMPLISHED PERFORMED NR 2 ENGINE ELECTRONIC ENGINE CONTROL DOWNLOAD REF 73-21-60 WITH LAPTOP AND TURNED IT OVER TO TECH SERVICES. REF AMM 73-21-60, R & R NR 2 ENGINE ELECTRONIC ENGINE CONTROL, OPS CHECK NORMAL, REF SAME AND FADEC SYS TEST.

Part: WARNING LIGHT — FALSE ACTIVATION (NR 2 ENGINE) · airframe 23,519 hrs · 7,036 cycles

NR 2 ENGINE CONTROL LIGHT ILLUMINATED ON GROUND. ACFT GROUNDED. REF FIM 73-06, TASK 801, PERFORMED ELECTRONIC ENGINE CONTROL BITE TEST ON NR 2 ENGINE ELECTRONIC ENGINE CONTROL, BITE TEST PASSED. ENGINE CONTROL NORMAL. ACFT OK FOR SERVICE. ENGINEERING REQUEST, ACCOMPLISHED DEU BITE & ELECTRONIC ENGINE CONTROL BITE REF FIM 31-62, TASK 801 & 73-00, TASK 801. NR 1 DEU LOGGED 31-61033 DU-CU LOW BRIGHTNESS, 31-61036 DU-CL LOW BRIGHTNESS, 31-68861 NO CAPTAIN DATA, & 31-65050 ALTITUDE DISAGREE. NR 2 DEU LOGGED 31-61033 DU-CU LOW BRIGHTNESS, 31-61036, DU-CL LOW BRIGHTNESS, 31-68862 NO CAPTAIN DATA, 31-65050, ALTITUDE DISAGREE, 31-61012, DU-LIB FAIL, & 31-61011, DU-LOB FAIL. NR 2 ELECTRONIC ENGINE CONTROL LOGGED 75-10582, TBV DEMAND & POSITION SIGNALS DISAGREE. ACCOMPLISHED FIM 75-23, TASK 801. ELECTRONIC ENGINE CONTROL BITE CHECK NORMAL. ACCOMPLISHED ACTUATORS TEST 3 TIMES, NO DEFECTS NOTED. TBV TORQUE MOTOR RESISTANCE NOMINAL AT 16 OHMS. DISCONNECTED, INSPECTED & CLEANED DP0907, TBV, DP0909 & DP0505, ELECTRONIC ENGINE CONTROL AND DP 0501, HMU, NO DEFECTS NOTED. SOCKET, PIN RETENTION TEST NORMAL REF AMM 70-70-01 AND SSM 75-31-22. INSPECTED CONNECTORS ON PREVIOUSLY MENTIONED UNITS, NO DEFECTS NOTED. RANG WIRING BETWEEN DP0907 & DP0909, DP0505 & DP0501, NO DEFECTS NOTED. AFTER CONNECTOR CLEANING, ACCOMPLISHED ELECTRONIC ENGINE CONTROL BITE, ACTUATORS TEST AND IDLE ENGINE RUN. NO DEFECTS NOTED, ALL INDICATIONS NORMAL. TBV DEMAND & POSITION DIFFERENCE WAS ONLY 7 PERCENT.

Part: WARNING LIGHT — FALSE ACTIVATION (NR 2 ENGINE) · airframe 23,083 hrs · 6,922 cycles

NR 2 ENGINE CONTROL IT ILLUMINATED DURING TAXI. ACFT GROUNDED. PERFORMED FIM 73-06 TASK 801, ELECTRONIC ENGINE CONTROL BITE REF FIM 73-00, TASK 801 SHOWS TBV DEMAND AND SIGNAL DISAGREE. PERFORMED ACTUATOR TEST IAW AMM 71-00-00-700-807-F00. MAINTENANCE MESSAGE DOES NOT SHOW. INTERMITTENT FAULT WITH SUCCESSFUL GROUND VERIFICATION ACCOMPLISH. ACFT OK FOR SERVICE.

Part: SATCOM — LOCKED · airframe 23,094 hrs · 6,924 cycles

SATCOM LOCKOUT OCCURRED IN-FLIGHT. ACFT GROUNDED. ACCOMPLISHED SATCOM RESET PROCEDURES IAW QRH. SATCOM OPS NORMAL.

Part: BATTERY PACK — NO TEST (EMERGENCY LIGHTS) · airframe 22,717 hrs · 6,834 cycles

EMERGENCY LIGHT PACK M1675 FAILS CAPACITY CHECK. ACFT GROUNDED. REPLACED POWER SUPPLY BATTERY PACK. OPS CK NORMAL. REF AMM 33-51-06.

Part: BATTERY PACK — NO TEST (EMERGENCY LIGHTS) · airframe 22,717 hrs · 6,834 cycles

EMERGENCY LIGHTS PACK, M1695 FAILS CAPACITY CHECK. ACFT GROUNDED. REPLACED POWER SUPPLY BATTERY PACK. OPS CK NORMAL REF AMM 33-51-06.

Part: BATTERY PACK — NO TEST (EMERGENCY LIGHTS) · airframe 22,717 hrs · 6,834 cycles

EMERGENCY LIGHTS PACK M1694 FAILS CAPACITY CHECK. ACFT GROUNDED. REPLACED POWER SUPPLY BATTERY PACK. OPS CK NORMAL. REF AMM 33-51-06.

Part: BATTERY PACK — NO TEST (EMERGENCY LIGHTS) · airframe 22,717 hrs · 6,834 cycles

EMERGENCY LIGHTS PACK M1672 FAILS CAPACITY CHECK. ACFT GROUNDED. REPLACED POWER SUPPLY BATTERY PACK. OPS CK NORMAL, REF AMM 33-51-06.

Part: BATTERY PACK — NO TEST (EMERGENCY LIGHT) · airframe 22,717 hrs · 6,834 cycles

EMERGENCY LIGHTS PACK M1670, FAILS CAPACITY CHECK. ACFT GROUNDED. REPLACED POWER SUPPLY BATTERY PACK. OPS CHECK NORMAL, REF AMM 33-51-06.

Part: BATTERY PACK — NO TEST (EMERGENCY LIGHTS) · airframe 22,717 hrs · 6,834 cycles

EMERGENCY LIGHTS, PACK M1671 FAILS CAPACITY CHECK. ACFT GROUNDED. REPLACED POWER SUPPLY BATTERY PACK. OP CK NORMAL, AMM 33-51-06.

Part: RELAY — FAILED (AUTO SHUTOFF) · airframe 22,561 hrs · 6,800 cycles

WHILE ACCOMPLISHING T/C 78128006, THE LT CENTER TANK AUTO SHUTOFF FUNCTIONAL TEST FAILED. ACFT GROUNDED. R & R THE LT AUTO SHUTOFF RELAY, R936, REF WDM 28-23-11. OPS CK GOOD REF T/C 78128006.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 22,470 hrs · 6,773 cycles

FMC DISAGREE WARNING. ACFT GROUNDED. QRH ACCOMPLISHED, FMC DISAGREE WARNING CLEARED.

Part: PROBE — FAULTED (NR 2 ENGINE) · airframe 22,173 hrs · 6,696 cycles

FOUND ECONOMIC FAULT NR 2 ENGINE 77-10852. THE BOTTOM RT EGT SIGNAL, T49552, IS OUT OF RANGE. REPLACED LOWER RT ENGINE NR 2 T49.5 PROBE IAW AMM 77-21-01/401. ACCOMPLISHED EEC TEST IAW AMM TASK 73-21-00-700-804-F00. OPS GOOD. RAN ENGINE FOR 5 MIN S1-S4, S2-S3 WERE LESS THAN 25 DEGREES DIFFERENCE IAW AMM SUBTASK 77-21-00-839-006.

Part: ENGINE — FAULTED (NR 2) · airframe 21,798 hrs · 6,595 cycles

NR 2 ENGINE: FOUND MSG 75-10442. THE VBV POSITION SIGNAL IS OUT OF RANGE. LONG TIME FAULT. ACFT GROUNDED,ON DEFERRAL.

Part: RADIO — MALFUNCTIONED (HF SYS) · airframe 21,798 hrs · 6,595 cycles

BOTH HF RADIOS INDICATE INOPERATIVE. ACFT GROUNDED. PERFORMED RESET PROC. IAW MM 23-12-41-800-802 AND DISPLAYS RETURNED TO NORMAL. GROUND VERIFICATION CK GOOD IAW SAME.

Part: ENGINE — FAULTED (NR 2) · airframe 21,798 hrs · 6,595 cycles

NR 2 ENGINE: FOUND MSG 75-10392. THE VSV POSITION SIGNAL IS OUT OF RANGE. LONG TIME FAULT. ACFT GROUNDED. ON DEFERRAL.

Part: ENGINE — FAULTED (NR 2) · airframe 21,798 hrs · 6,595 cycles

NR 2 ENGINE FOUND MSG 73-10342, THE FMV POSITION SIGNAL IS OUT OF RANGE. SHORT TIME FAULT. ACFT GROUNDED.

Part: CONNECTOR — LOOSE (NR 2 ENGINE) · airframe 21,728 hrs · 6,572 cycles

ACOMPLISHING TASKCARD 78273000, FOUND NR 2 ENGINE SHORT TIME FAULT 73-10342, THE FMV POSITION SIGNAL IS OUT OF RANGE, LONG TIME FAULT 75-10392 THE VSV POSITION SIGNAL IS OUT OF RANGE, AND LONG TIME FAULT 75-10442 THAT VBV POSITION SIGNAL IS OUT OF RANGE. ACFT GROUNDED. ACCOMPLISHED TROUBLESHOOTING IAW FIM 75-34, TASK 817. INITIAL EVALUATION SHOWED NO CURRENT FAULTS. MEASURED RESISTANCE OF VSV AND VBV THROUGH J9 HARNESS AT ELECTRONIC ENGINE CONTROL. ALL VALUES ARE WITHIN LIMITS. MEASURED RESISTANCE OF FMV THROUGH J5 HARNESS AT ELECTRONIC ENGINE CONTROL. VALUES WITH IN LIMITS BUT HAVE A 10 OHM FLUCTUATION. RESISTANCE AT FMV RECEPTACLE AT HMU IS STEADY AND WITHIN LIMITS. CONNECTOR DP0505 DOES NOT SECURE PROPERLY TO J5 AT ELECTRONIC ENGINE CONTROL. R & R J5 HARNESS IAW 73-21-06. ACTUATORS TEST PASSED.

Part: WARNING LIGHT — FALSE ACTIVATION (NR 2 ENGINE) · airframe 21,586 hrs · 6,525 cycles

DURING TAXI-OUT, NR 2 ENGINE CONTROL LIGHT ILLUMINATED. ACFT GROUNDED. PERFORMED ELECTRONIC ENGINE CONTROL BITE, FOUND LEG O, MESSAGE 75-10582 LOGGED TBV IN DEMAND POSITION SIGNAL DISAGREE. PERFORMED FIM 75-23, TASK 801. INITIAL EVAL SHOWS INTERMITTENT FAULT. TEST 12 ACTUATORS PASSED. ELECTRONIC ENGINE CONTROL SELF-TEST PASSED. NO HISTORY PASSED 30 DAYS. NR 2 ENGINE CONTROL LIGHTS REMAIN OUT. ACFT OK FOR CONTINUED SERVICE.

Part: HMU — FAULTED (NR 2 ENGINE) · airframe 21,462 hrs · 6,480 cycles

NR 2 ENGINE FOUND SHORT TIME FAULT 73-10342, THE FMV POSITION SIGNAL IS OUT OF RANGE. ACFT GROUNDED. REMOVED NR 2 ENGINE HMU IAW T/C N8473000. INSTALLED NR 2 ENGINE HMU IAW T/C N8473001. ACCOMPLISHED TEST 3A, 12, & 13 AMM 71-00-00-00-800-F00.

Part: FASTENER — LOOSE (NR 2 INLET) · airframe 21,257 hrs · 6,410 cycles

REF T/C 78472000, NR 2 ENGINE INLET AND FAN BLADES-DETAILED INSPECTION. FOUND NR 5 STRUT PANEL AT 5 O'CLOCK POS, ALF, HAS 2 LOOSE FASTENERS AND BOTH INSERTS APPEAR TO BE DAMAGED. ACFT GROUNDED. INSERTS CK GOOD, SECURED FASTENERS NR 5 STRUT PANEL NR 2 ENGINE, REF AMM 72-23-02.

Part: DISPLAY — FAILED (NR 1) · airframe 21,239 hrs · 6,403 cycles

NR 1 MCDU BLANK, IN FLIGHT. ACFT GROUNDED. RECYCLED ACFT POWER ACCOMPLISHED, FIM 34-61, TASK 801. OPS CHECK NORMAL.

Part: FMC — FAULTED · airframe 21,109 hrs · 6,355 cycles

FMC CDU INTERROGATION FOUND LONG TERM FAULT, 75-10442. THE VBV POSITION SIGNAL IS OUT OF RANGE, ENGINE NR 2. ACFT GROUNDED. ON DEFERRAL.

Part: WARNING MESSAGE — ACTIVATED (FMC) · airframe 21,109 hrs · 6,355 cycles

FMC CDU INTERROGATION FOUND FAULT 75-10392. THE VSV POSITION SIGNAL IS OUT OF RANGE. A LONG TERM FAULT, ENGINE NR 2. ACFT GROUNDED. ON DEFERRAL.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 21,109 hrs · 6,355 cycles

FMC CDU INTERROGATION FOUND SHORT TERM FAULT, 73-10342. THE FMV POSITION SIGNAL IS OUT OF RANGE, ENGINE NR 2. ACFT GROUNDED. ACCOMPLISHED FIM 73-25, TASK 803, FOR NR 2 ENGINE "FMV POSITION SIGNAL OUT OF RANGE" SHORT-TERM FAULT. PASSES RECENT FAULTS & NO FAULTS NOTED LAST 5 FLIGHT LEGS IAW T/C 78273000 "INTERROGATE THE FMC CDU FOR ENGINE FAULTS".

Part: WIRE HARNESS — UNKNOWN (NR 2 ENGINE) · airframe 21,039 hrs · 6,338 cycles

WHILE ACCOMPLISHING TASK CARD 78273000, FOUND FAULT FMV POSITION SIGNAL IS OUT OF RANGE. MSG NR: 73-10342. SHORT TERM. NR 2 ENGINE. FOUND FAULT VSV POSITION SIGNAL IS OUT OF RANGE. MSG 75-10392. LONG TERM, NR 2 ENGINE. FOUND FAULT VSV POSITION SIGNAL IS OUT OF RANGE, MSG: 75-10392. LONG TERM FAULT. ACFT GROUNDED IAW TECH SERVICES: ACCOMPLISHED FIM 75-34, TASK 817 VSV, VBV, FMV, CHANNEL A. LVDT EXCITATION CIRCUIT FAULT- FAULT ISOLATION. ELECTRICAL ENGINE CONTROL TEST NORMAL, ACTUATORS TEST PASSED. GVI NORMAL, ALL RESISTANCE VALUES WERE WITHIN LIMITS. AS A PRECAUTION, REPLACED THE, J5 FAN WIRING HARNESS REF AMM 73-21-06-000-801-F00. ACTUATORS TEST NORMAL, ELECTRICAL ENGINE CONTROL TEST NORMAL.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 20,428 hrs · 6,145 cycles

FMC DISAGREE ON GROUND, ACFT GROUNDED. ACCOMPLISHED QRH PROCEDURES, OPS NORMAL.

Part: FAULT CODE — ACTIVATED (NR 1 ENGINE) · airframe 20,254 hrs · 6,094 cycles

WHEN ACCOMPLISHING ENGINE NR 1 BITE TEST, FOUND INTERNAL EEC FAULT ON FAULT HISTORY FLIGHT LEG 9. MESSAGE 73-20201. ACFT GROUNDED.

Part: FAULT CODE — ACTIVATED (NR 2 ENGINE) · airframe 20,254 hrs · 6,094 cycles

WHILE ACCOMPLISHING ENG NR 2 BITE TEST, FOUND LONG TERM FAULTS VBV POSITION SIGNAL IS OUT OF RANGE, MSG 75-10442, FLIGHT LEG 2 AND 3 AND VSV POSITION SIGNAL IS OUT OF RANGE. MSG 75-10392, FLIGHT LEG 2 AND 3. ACFT GROUNDED.

Part: WARNING LIGHT — FALSE ACTIVATION (FMV) · airframe 20,254 hrs · 6,094 cycles

WHEN ACCOMPLISHING ENG NR 2 BITE TEST FOUND FAULT FMV POSITION SIGNAL IS OUT OF RANGE. FLIGHT LEG 2 AND 3 MSG 73-10342. SHORT TIME FAULT. FAULT MUST BE CORRECTED IN 50 FLIGHT HOURS. ACFT GROUNDED. FAULT MSG NO LONGER IN CURRENT OR FAULT HISTORY. EEC TEST & ACTUATOR TEST PASSED REF FIM 73-25, TASK 803.

Part: WARNING LIGHT — FALSE ACTIVATION (ALPHA VANE) · airframe 20,192 hrs · 6,066 cycles

RT ALPHA VANE LIGHT ILLUMINATED MOMENTARILY ON ENGINE START. ACFT GROUNDED. ACCOMPLISHED SYSTEM TEST REF AMM 30-31-00. VERIFIED OPS CHECK NORMAL.

Part: SENSOR — FAILED (AOA) · airframe 20,196 hrs · 6,070 cycles

RIGHT ALPHA VANE LIGHT ILLUMINATED MOMENTARILY. ACFT GROUNDED. R & R NR 2 AOA SENSOR IAW AMM 34-21-05. OPS CHECKED NORMAL.

Part: WARNING LIGHT — FALSE ACTIVATION (ALPHA VANE) · airframe 20,195 hrs · 6,069 cycles

RIGHT ALPHA VANE LIGHT ILLUMINATED MOMENTARILY. ACFT GROUNDED. UNABLE TO DUPLICATE. RIGHT AOA HEATER CHECKS OK REF AMM 30-31-00-736-801.

Part: WARNING LIGHT — FALSE ACTIVATION · airframe 20,139 hrs · 6,049 cycles

RT ALPHA VANE LIGHT ILLUMINATED BREIFLY CLIMBING THROUGH 10,000 MSL. MASTER CAUTION LIGHT WAS RESET AND RT ALPHA VANE LIGHT EXTINGUISHED. ACFT GROUNDED. PERFORMED OPS TEST IAW MM 30-31-00-730-801 NO DEFECTS NOTED, OPS NORMAL, NO HISTORY PAST 30 DAYS.

Part: LENS — BROKEN (EMERGENCY LIGHT) · airframe 20,083 hrs · 6,030 cycles

EXIT SIGN OVER L2 DOOR IS BROKEN. ACFT GROUNDED. R & R L2 DOOR EXIT SIGN/LIGHT ASSY. OP CK'S GOOD, MM 33-51-01-960-802.

Part: INTERCOSTAL — CRACKED (BS 344-360) · airframe 20,004 hrs · 6,006 cycles

MAIN CABIN INTERCOSTAL FS 344 TO 360, RBL 6 IS CRACKED AT FASTENER HOLE. ACFT GROUNDED. R & R MAIN INTERCOSTAL AT FS 344-360 IAW SRM 51-40-02 ND DWG 141A5400.

Part: INTERCOSTAL — CRACKED (BS 344-360) · airframe 20,004 hrs · 6,006 cycles

MAIN CABIN INTERCOSTAL FS 344 TO 360, LBL 6 IS CRACKED AT FASTENER HOLE. ACFT GROUNDED. REMOVED AND INSTALLED NEW INTERCOSTAL AT FS 344-360 IAW SRM 51-40-02, 51-40-05 AND BAC DWG 141A5400.

Part: TRANSITION PANEL — CRACKED (BS 727H) · airframe 20,004 hrs · 6,006 cycles

AFT CARGO COMPARTMENT RT TRANSITION PANEL CRACKED BS 727H. ACFT GROUNDED. REMOVED DAMAGED SECTION OF AFT CARGO COMPARTMENT RT TRANSITION PANEL IAW SRM 53-00-532R-5, REPAIR 5. LOCATED AND DRILLED TRANSITION PANEL REPAIR PARTS IAW SRM 53-00-532R-5, REPAIR 4 AND SRM 51-40-05. ALODINED AND PRIMED REPAIR PARTS IAW SRM 51-20-01. APPLIED TOPCOAT TO REPAIR PARK IAW AMM 51-21-73. INSTALLED TRANSITION PANEL PARTS IAW SRM 51-40-02 AND SRM 53-00-532R-5, REPAIR 5. DOT REMOVED.

Part: FLOORBEAM — CRACKED (BS 540) · airframe 20,004 hrs · 6,006 cycles

CABIN FLOOR PANEL BREAK STA 540, LBL 2 CRACKED. ACFT GROUNDED. R & R PANEL BREAK IAW SRM 51-40-02.

Part: FLOORBEAM — CRACKED (BS 540) · airframe 20,004 hrs · 6,006 cycles

CABIN FLOOR PANEL BREAK, STA 540, RBL 2 CRACKED. ACFT GROUNDED. R & R PANEL BREAK IAW SRM 51-40-02.

Part: WARNING LIGHT — FALSE ACTIVATION (WINDOW HEAT) · airframe 19,991 hrs · 6,001 cycles

FO'S SIDE R2 WINDOW OVERHEAT AT 20,000 FT CLIMBING, FOLLOWED QRH PROCEDURE, LIGHT CAME BACK ON. ACFT GROUNDED. PERFORMED BITE CHECK ON THE WINDOW HEAT CONTROL UNIT RT SIDE. MOST RECENT FAULTS WERE ON THE "WINDOW SENSOR," BUT IT HAD NO CURRENT FAULTS. PERFORMED FIM TASK 30-41/811, STEP G. WINDOW TEMP SENSORS CHECKED GOOD. PERFORMED AN OPS CHECK ON THE WINDOW HEAT SYSTEM IAW AMM 30-41-00-710-801, CHECKED GOOD.

Part: SATCOM — LOCKED · airframe 19,993 hrs · 6,002 cycles

EXPERIENCED SATCOM LOCKUP. ACFT GROUNDED. QRH PROCEDURE ACCOMPLISHED. NORMAL SATCOM OPERATIONS RESTORED.

Part: SATCOM — LOCKED · airframe 19,984 hrs · 5,999 cycles

EXPERIENCED SATCOM LOCK UP. ACFT GROUNDED. QRH PROCEDURE ACCOMPLISHED. NORMAL OPERATION RESTORED.

Part: SATCOM — LOCKED · airframe 19,931 hrs · 5,981 cycles

SATCOM LOCK-UP DURING POWER TRANSFER. ACFT GROUNDED. RESET OKAY PER QRH PROCEDURE

Part: SATCOM — LOCKED · airframe 19,832 hrs · 5,954 cycles

SATCOM LOCKUP AFTER POWER TRANSFER FROM APU TO ENGINE. ACFT GROUNDED. ACCOMPLISHED QRH PROCEDURES AND RECOVERED SATCOM.

Part: SATCOM — LOCKED · airframe 19,796 hrs · 5,944 cycles

SATCOM LOCK UP. ACFT GROUNDED. COMPLETED QRH, SATCOM LOCKUP PAGE 53. OPS NORMAL.

Part: ACTUATOR — FAILED (RAM AIR EXHAUST) · airframe 19,768 hrs · 5,936 cycles

RT PACK LIGHT CAME ON DURING TAXI IN, DID NOT ATTEMPT RESET. ACFT GROUNDED. REPLACED RIGHT RAM AIR DOOR ACT IAW AMM 21-51-21. GROUND VERIFICATION CHECKED GOOD. ACCOMPLISHED RAM INLET ACTUATOR TEST, BITE TEST OF RT PACK ZONE TEMP CONTROLLERS. FAULT RESET.

Part: SATCOM — LOCKED · airframe 19,690 hrs · 5,917 cycles

SATCOM LOCKUP. ACFT GROUNDED. SATCOM LOCKUP CHECKLIST PERFORMED AND SYS RESTORED.

Part: WARNING LIGHT — FALSE ACTIVATION (MASTER CAUTION) · airframe 19,659 hrs · 5,908 cycles

UPON MASTER CAUTION RECALL FOR LANDING RT PACK LIGHT ILLUMINATED. LIGHT RESETS WITH RESET OF MASTER CAUTION SYS. ACFT GROUNDED. PERFORMED BITE CHECK OF NR 1 AND NR 2 TEMP CONTROLLERS. NO FAULT NOTED ON NR 1 CONTROLLER. NR 2 CONTROLLER HAD RAM AIR ACTUATOR FAULT LIGHT. FAULT RESET AND CLEARED. PERFORMED BITE CHECK AGAIN, OPS NORMAL, NO FAULT NOTED. ALSO, CHECK RECALL IN FLT DECK, NO LIGHT ILLUMINATED. SYSTEM CHECK. NO HISTORY LAST 30 DAYS. GROUND VERIFICATION TEST NORMAL.

Part: SATCOM — LOCKED · airframe 19,479 hrs · 5,857 cycles

SAT COM LOCKUP GROUNDED. RESTORED TO NORMAL OPS VIA QRH.

Part: ACTUATOR — FAILED (RAM AIR EXHAUST) · airframe 19,259 hrs · 5,788 cycles

LEFT PACK AMBER LIGHT ILLUMINATED ON APPROACH INTO SEATTLE. QRH RUN. LIGHT EXTINGUISHED. PACK LIGHT ILLUMINATED AGAIN ON LANDING. RESET ON TAXI IN. ACFT GROUNDED, BITE TEST OF LT PACK/ZONE TEMP CONTROLLER, M1442, FAULTS RAM AIR INLET ACTUATOR. REPLACED LT RAM AIR INLET ACTUATOR. INSTALLATION TEST PASSES AND BITE TEST OF PACK/ZONE TEMP CONTROLLER, OK REF AMM 21-51-21-400-801.

Part: SATCOM — LOCKED · airframe 19,188 hrs · 5,771 cycles

SATCOM APPREARS TO HAVE LOCKED UP. NO SAT PROMPT DISPLAYED ON MCDU MENU PAGE. ACFT GROUNDED. ACCOMPLISHED QRH. OPS NORMAL.

Part: SATCOM — LOCKED · airframe 19,177 hrs · 5,769 cycles

SATCOM LOCK-UP ON GROUND. ACFT GROUNDED. QRH PROCEDURE ACCOMPLISHED SAT IS NOW DISPLAYED.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 19,156 hrs · 5,760 cycles

"FMC DISAGREE" ON TAXI. ACFT GROUNDED. FAULT CLEARED AFTER PERFORMING QRH PROCEDURE.

Part: FAULT CODE — ACTIVATED (APU) · airframe 19,081 hrs · 5,741 cycles

APU HAS HISTORY OF FAULT LIGHT ILLUMINATING DURING CSS. ACFT GROUNDED. R & R APU IAW TC 78349010. OPS TEST GOOD.

Part: SEAL — OUT OF LIMITS (APU) · airframe 19,081 hrs · 5,741 cycles

APU SIGMA SEAL IS OUT OF HEIGHT LIMITS IAW TC 78349000. ACFT GROUNDED. R & R APU SIGMA SEAL IAW AMM 49-15-11.

Part: SATCOM — LOCKED · airframe 19,023 hrs · 5,719 cycles

SATCOM LOCK UP DURING POWER TRANSFER. ACFT GROUNDED. QRH COMPLETED, PROMPT RESTORED.

Part: FCU — MALFUNCTIONED (APU) · airframe 18,974 hrs · 5,702 cycles

ON 1ST START ATTEMPT APU FAULT LIGHT ILLUMINATED, AFTER FOLLOWING QRH. SECOND APU START WAS SUCCESSFUL. ACFT GROUNDED. TROUBLE SHOT APU. APU START AND OPS TEST PERFORMED IAW AMM 49-11-00. OPS NORMAL. PERFORMED APU BITE PROCEDURE IAW FIM 49-60, TASK 801. BITE TEST FLAGGED CODE 49-31016, OVER TEMPERATURE SHUTDOWN AND 49-31171, FCU FLOW DISAGREES WITH COMMAND. REMOVED AND REPLACED APU PER TASK CARD 78349010. OPS TEST GOOD.

Part: ANTI-ICE VALVE — FAILED (NR 1 ENGINE) · airframe 18,942 hrs · 5,694 cycles

AFTER CLIMBOUT AND PASSING THRU CLOUD DECK CLEAR ABOVE, TURNED ENGINE ICE OFF, NR 1 ENGINE COWL VALVE OPEN LIGHT STAYED ON WITH THE AMBER TAI INDICATION ON UPPER ENG N1, ACCOMPLISHED QRH. ACFT GROUNDED. R & R THE TAI VALVE, OPS CHECKED NORMAL AND OK FOR SERVICE REF AMM 30-21-11-400/801.

Part: BATTERY PACK — FAILED (EMERGENCY LIGHT) · airframe 18,875 hrs · 5,675 cycles

EMERGENCY LIGHT CHECK, L2 DOOR EMERGENCY LIGHT GOES OUT TOO EARLY. ACFT GROUNDED. REPLACED L2 DOOR EMERGENCY LIGHT BATTERY. ALL OPS NORMAL, IAW MM 33-51-06.

Part: BOLT — LOOSE (NR 1 FAN DUCT) · airframe 18,875 hrs · 5,675 cycles

NR 1 ENGINE FAN DUCT PANEL AT 8:00 POSTION HAS LOOSE BOLTS. ACFT GROUNDED. TIGHTEN LOOSE BOLT AT 8:00 POSITION IAW AMM 72-23-07-400-801-F00.

Part: FUEL CONTROL — FAULTED (APU) · airframe 18,831 hrs · 5,663 cycles

WHEN ATTEMPTING TO START APU AFTER LANDING, APU FAULT LIGHT ILLUMINATED. APU STARTED WITH NO LIGHT AT GATE. ACFT GROUNDED. REPLACED APU FUEL CONTROL UNIT IN REF TO MM 49-31-11-400. LEAK CHECK GOOD.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 18,630 hrs · 5,606 cycles

FMC DISAGREE OCCURRED ON GROUND. ACFT GROUNDED. QRH FOLLOWED. PROBLEM RESOLVED.

Part: SATCOM — MALFUNCTIONED · airframe 18,483 hrs · 5,567 cycles

NO SATCOM PROMPT ON MCDU. ACFT GROUNDED. RAN QRH, FIXED PROBLEM.

Part: SWITCH — MALFUNCTIONED (AUTOTHROTTLE) · airframe 18,314 hrs · 5,505 cycles

FOLLOW-UP TO HISTORY OF PSEU LIGHTS ON LANDING WITH CODE 32-62101 LEFT TRA FAULT CAUSING DELAYS. ACFT GROUNDED. ACCOMPLISHED TSR. REPLACED LT AUTOTHROTTLE SWITCH PACK ASSY, M1766, REF MM 76-11-07-400-802-F00. OPS CK GOOD IAW THE SAME.

Part: SATCOM — FAILED · airframe 18,213 hrs · 5,466 cycles

SATCOM INOPERATIVE DURING CRUISE, ATTEMPTED TO MAKE A SATCOM CALL. AFTER PUSHING THE SATCOM PROMPT THE PROMPT DISAPPEARS, AND THE CALL DOES NOT GO THROUGH. ACFT GROUNDED.

Part: SATCOM — MALFUNCTIONED · airframe 18,182 hrs · 5,458 cycles

SATCOM FAILED SHORTLY AFTER TAKEOFF, AND ACARS NO COMM INTERMITTENTLY. ACFT GROUNDED. RESET SYSTEM, GROUND FUNCTIONAL CHECK GOOD IAW AMM 23-15-00-730-801.

Part: SHUTOFF VALVE — LEAKING (NR 2 BLEED) · airframe 17,912 hrs · 5,371 cycles

DURING CLIMB, LT DUCT PRESSURE READ 50 PSI, AND RT DUCT PRESSURE READ 25 PSI. 25 PSI DIFFERENTIAL. DURING CRUISE, BOTH RT AND LT DUCT PRESSURE EVENTUALLY READ 45 PSI. ACFT GROUNDED. WHILE PERFORMING ENG BLEED AIR LEAK CHECK REF MM 36-11-00-700-802. FOUND PRSOV LEAKING AIR. REMOVED PRSOV REF MM 36-11-04-000-201. INSTALLED PRSOV IN REF TO AMM 36-11-04, OPS CHECK AND LEAK CHECK GOOD. GROUND VERIFICATION GOOD. ACCOMPLISHED PART POWER LEAK CHECK IAW AMM 71-00-00-700-823-F00. BOTH ENGINE PARAMETERS ARE NORMAL NO DUCT SPLIT NOTED IAW AMM 36-00-00-860-804.

Part: KNOB — BINDING (DISPLAY) · airframe 17,714 hrs · 5,312 cycles

BRIGHTNESS KNOB ON CAPTAIN`S MCDU EXTREMELY DIFFICULT TO MOVE. ACFT GROUNDED. VERIFIED FAULT. REPLACED CAPTAIN`S MCDU. OPS NORMAL, IAW MM 34-61-01.

Part: CONTROLLER — MALFUNCTIONED (WINDOW HEAT) · airframe 17,515 hrs · 5,254 cycles

DURING FLIGHT, WINDOW HEAT LT SIDE OVERHEAT LIGHT TURNED ON FOR 5 MIN THEN BACK OFF. NORMAL UNTIL LANDING THEN OVERHEAT LIGHT AGAIN. ACFT GROUNDED. FOUND COIN LAYING ACROSS LT SIDE WINDOW TERMINAL. SWAPPED SENSOR WIRES NO HELP. WHC SHOWS A SENSOR FAULT REF WDM 30-41-12. VERIFIED NEW WINDOW RESISTANCE AT 59.8 OHMS (H16) AND TB5016 AT TERMINAL NR 1. AFTER 5 MINS, OVERHEAT LIGHT ON. REPLACED WINDOW HEAT CONTROL UNIT IAW AMM TASK 30-41-11-000-801 & 30-41-11-400-801. OP CHECKED NORMAL WITH NEW WINDOW INSTALLED. REPLACED LT SLIDING WINDOW IAW AMM 56-12-11/ 401.

Part: WARNING LIGHT — FALSE ACTIVATION (WINDOW OVERHEAT) · airframe 17,484 hrs · 5,243 cycles

LEFT SIDE WINDOW OVERHEAT ILLUMINATED AT GATE. ACFT GROUNDED. TURNED WINDOW HEAT OFF, WAITED FIVE MINUTES, TURNED BACK ON, NO OVERHEAT OBSERVED NO HISTORY 30 DAYS OK FOR SERVICE.

Part: VENT — LEAKING (NR 2 IDG) · airframe 17,221 hrs · 5,152 cycles

NR 2 IDG REQUIRES FREQUENT SERVICING. ACFT GROUNDED. REPLACED NR 2 IDG VENT VALVE IAW CMM 24-11-85. PERFORMED STATIC LEAK CHECK, IAW MM 24-11-00-700-801 AND IDG HELD PRESSURE AND NO LEAKS NOTED. RAN ENGINE AT IDLE POWER AND NO LEAKS NOTED.

Part: CIRCUIT BREAKER — TRIPPED (FLT DISPLAY) · airframe 17,187 hrs · 5,144 cycles

FD CAUTION LIGHT ON EHSI, LEFT. ACFT GROUNDED. FOUND AFCS SYS A WORN LIGHT BATTERY CIRCUIT BREAKER TRIPPED. PERFORMED GVI BEHIND PANEL P18-1 FOR CONTAMINATION OR DEFECT, NONE NOTED. RESET CIRCUIT BREADER IAW MM 20-60-01. PERFORMED DFCS BITE PROC FOUND NO CURRENT FAULT FD CAUTION LIGHT ON CAPT'S PFD OFF SYS CHECKED NORMAL.

Part: BEARING — WARNING MESSAGE (NR 1 ENGINE) · airframe 16,555 hrs · 4,952 cycles

DIAGNOSTIC REPORTS NR 1 ENGINE EVEL 2 BEARING ALERT MESSAGE. ACFT GROUNDED. REMOVED THE NR 1 ENGINE IAW T/C 78471000M. INSTALLED NR 1 ENGINE IAW T/C 78471001.

Part: IDG — CONTAMINATED (NR 1 ENGINE) · airframe 16,555 hrs · 4,952 cycles

DURING ENGINE RUNS, AFTER NR 1 ENGINE CHANGE, IDG WOULD NOT PRODUCE POWER, NO INDICATIONS. ACFT GROUNDED. REMOVED NR 1 ENGINE IDG IAW MM 24-11-11-800-801. METAL CONTAMINATION FOUND IN NR 1 IDG. FLUSHED NR 1 IDG OIL COOLING CIRCUIT IAW AMM TASK 24-11-11-090-801, C3, STEP 1(C) 1). INSTALLED NR 1 IDG IAW MM 24-11-11-400-801, STEP 3 A-I. OPS AND LEAK CHECKED GOOD. REPLACED NR 1 IDG AIR/OIL COOLER IAW AMM TASK 24-11-21-400-801, STEPS 3A THROUGH I. LEAK CHECKED GOOD. REPLACED NR 1 IDG OIL COOLER IAW AMM 73-11-06, STEP A-G. LEAK CHECKED GOOD.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 16,456 hrs · 4,916 cycles

FMC DISAGREE AFTER PUSH BACK. ACFT GROUNDED. ACCOMPLISHED QRH PROCEDURE, OPS NORMAL.

Part: COUPLER — MALFUNCTIONED (HF ANTENNA) · airframe 16,151 hrs · 4,832 cycles

NR 1 HF WILL NOT TRANSMIT. ACFT GROUNDED. RESET SYS POWER PERFORMED FIM TASK IAW AMM 23-11-801. BITE OF HF SYSTEM PASSED, NO FAULTS FOUND. GROUND VERIFICATION CHECKED OK NO HISTORY PAST 30 DAYS. SYSTEM RESTORED. REPLACED HF ANTENNA COUPLER #1 REF AMM TASK 23-11-61. ACCOMPLISHED FIM 23-11 TASK 801 FOR BOTH HF SYS. BITE PROCEDURE PASSED. NO FAULTS NOTED.

Part: SATCOM — MALFUNCTIONED · airframe 15,589 hrs · 4,668 cycles

NO SATCOM ON MENU PAGE. UNABLE TO RESTORE VIA QRH. ACFT GROUNDED. ON DEFERRAL.

Part: EEC — FAULTED (NR 2 ENGINE) · airframe 15,531 hrs · 4,649 cycles

ACQUIRED FAULT CODE ON EEC BITE TEST NR 2 ENGINE. ACFT GROUNDED.

Part: CONNECTOR — UNSECURE (HF SYSTEM) · airframe 15,352 hrs · 4,594 cycles

UNABLE TO TRANSMIT ON HF1 BOTH SIDES. ACFT GROUNDED. SECURED CONNECTOR D4227P TO HF1 COUPLER & OPS CHECKED GOOD, REF AMM 23-11-61.

Part: MODULE — FAULTY (FIRE DETECTOR) · airframe 15,310 hrs · 4,585 cycles

APU FIRE DETECTOR INOPERATIVE LIGHT ILLUMINATED AFTER APU STARTED AND STABLE. ACFT GROUNDED. FOUND ENGINE & APU FIRE DETECTION MODULE M279 FAULTY. FOUND APU TAILPIPE OVERHEAT DETECTOR WITH HIGH RESISTANCE, 150 KOHMS. R & R M279 & APU TAILPIPE OVERHEAT DETECTOR M1925, IAW W/D 26-11-31 & MM'S 26-15-01 & 26-10-01. FIRE DETECTION OPS CHECKED NORMAL IAW MM'S 26-15-00 & 26-11-00.

Part: HF COMM — MALFUNCTIONED (NR 1) · airframe 15,275 hrs · 4,577 cycles

NR 1 HF INOPERATIVE, WOULD NOT TRANSMIT OR RECEIVE. ACFT GROUNDED. CYCLED POWER ON NR 1 HF TRANSCIEVER IAW FIM 23-11-TASK 801 & 806. BITE CHECKED GOOD. NO FAULTS NOTED. NO HISTORY 60 DAYS.

Part: BLEED VALVE — FAILED (NR 2 ENGINE) · airframe 15,211 hrs · 4,562 cycles

DURING CLIMB, FL 360 LT DUCT PRESSURE 44 PSI, RT 22 PSI, N1'S WERE 100.5 - PRESSURIZATION NORMAL. DURING CRUISE AT FL 380 DUCT PRESSURES LT=34 PSI, RT=28 PSI. ACFT GROUNDED. ACCOMPLISHED TC NG-36WC-00001. PRECOOLER CONTROL VALVE FAILED, R & R PRECOOLER CONTROL VALVE IAW MM 36-12-02. OPS CHECKED NR 2 ENG IAW MM 36-11-00-710-801- BLEED CROSSOVER TEST. BLEED TEST FAILED DUE TO PRESSURE FLUCTUATIONS OF +20 PSI AT 80 PERCENT N1. R & R NR 2 ENGINE HIGH STAGE VALVE IAW MM 36-11-06-000-801 + MM 36-11-06-400-801. REMOVED PRECOOLER CV SENSOR + 450 DEGREE THERMOSTAT IAW MM 36-12-03-000-801 + 36-11-05-000-801. T/C NG-36WC-000A COMPLETE UP TO STEP L. INSTALLED NR 2 ENG 450 DEGREE THERMOSTAT REF. AMM 36-11-05-400-801, LEAK CK GOOD. INSTALLED NR 2 ENG PRECOOLER CONT VALVE SENSOR REF AMM 36-12-03-400-801, LEAK CK GOOD. INSTALLATION TEST OF HIGH STAGE VALVE PASSED IAW MM 36-11-06-400-801, STEP G + H. T/C NG-36WC-00001 COMPLETED. CROSSOVER TEST STILL FAILS. HIGH STAGE REGULATOR FAILED HEALTH CK IAW T/C NG-36WC-00001, STEP 04.K. R & R NR 2 ENGINE HIGH STAGE REGULATOR REF AMM 36-11-07-000-801 AND 36-11-07-400-801. LEAK CKS GOOD. COMPLETED HEALTH CK TASK CARD NG-36WC-00001. ALTHOUGH THE PRSOV PASSED THE HEALTH CHECK, NOTED CLUNKING NOISES FROM THE BUTTERFLY VALVE AS IT ACTUATED. SUSPECT THAT THE PRSOV IS FAILING INTERMITTENTLY AND FAILING TO PROPERLY REGULATE DOWNSTREAM PRESSURE. REPLACED PRSOV IAW MM 36-11-04. BLEED AIR CROSSOVER TEST GOOD IAW MM 36-11-00.

Part: WARNING MESSAGE — FALSE ACTIVATION (LT A/C PACK) · airframe 15,027 hrs · 4,515 cycles

LEFT PACK LIGHT COMES ON AT RECALL, OUT WITH RESET MASTER CAUTION. ACFT GROUNDED. ACCOMPLISHED PACK-ZONE TEMP CONTROLLER BITE AMM 21-61-02. OPS CHECKED NORMAL, GROUNDED, VERIFICATION SUCCESSFUL.

Part: RADAR — MALFUNCTIONED (WX SYSTEM) · airframe 14,867 hrs · 4,472 cycles

WEATHER RADAR INOPERATIVE, FAILED AFTER 1 HR, RADAR OPS CHECKED NORMAL. ACFT GROUNDED. WEATHER RADAR SYSTEM CHECKED GOOD IAW TASK 34-43, TASK 801. NO HISTORY IN 30 DAYS, GROUND VERIFICATION GOOD.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 14,244 hrs · 4,303 cycles

FMC DISAGREE OCCURRED ON TAXI OUT. ACFT GROUNDED. PERFORMED PROCEDURE FROM QRH. NORMAL OPS RESTORED.

Part: DISPLAY — MALFUNCTIONED (COCKPIT) · airframe 14,220 hrs · 4,295 cycles

F/O CDU BLANKED. ACFT GROUNDED. ACCOMPLISHED FIM TASK 34-61, TASK 804 CDU BITE CHECK PROCEDURE, NO FAULTS FOUND, SYS. OPS CHECKS NORMAL.

Part: UNKNOWN — UNKNOWN (DISPLAY) · airframe 14,202 hrs · 4,291 cycles

COPILOT MCDU INOPERATIVE. ACFT GROUNDED. ACCOMPLISHED FIM 34-61, TASK 804, MCDU OPERATION NORMAL WITH NO FURTHER DISCREPANCIES.

Part: WARNING LIGHT — FALSE ACTIVATION (FMC) · airframe 14,144 hrs · 4,276 cycles

FMC DISAGREE LIGHT CAME ON. ACFT GROUNDED. ACCOMPLISHED QRH PROCEDURE. OPS NORMAL.

Part: BATTERY — DISCHARGED (MASTER) · airframe 14,023 hrs · 4,239 cycles

BOTH MAIN & AUX BATTERIES ARE DEAD. ACFT GROUNDED. R & R MAIN & AUX BATTERIES IAW MM 24-31-11. OPS NORMAL.

Part: DISPLAY — MALFUNCTIONED (COCKPIT) · airframe 13,734 hrs · 4,146 cycles

DURING MOMENTARY GROUND POWER LOSS, F/O MCDU BLANKED OUT. ACFT GROUNDED. SWITCHED POWER SOURCES, NO HELP, RESET FMCS MCDU 2 AND COMPUTER 2 CIRCUIT BREAKER IAW AMM 20-60-01-860-801. F/O MCDU RETURNED TO NORMAL. OK FOR CONTINUE SERVICE.

Part: WARNING LIGHT — ILLUMINATED (FMC) · airframe 13,734 hrs · 4,146 cycles

DURING TAXI, FMC DISAGREE ANNUNCIATED IN CDU SCRATCH PAD. ACFT GROUNDED. QRH PROCEDURES WERE FOLLOWED TO SUCCESSFULLY RESET FMCS.

Part: KNOB — INOPERATIVE (FLIGHT DECK) · airframe 13,706 hrs · 4,138 cycles

CAPTAIN`S COURSE KNOB INOPERATIVE. ACFT GROUNDED. R &R MAIN CONTROL PANEL IAW AMM 22-11-34. MAIN CONTROL PANEL OPS NORMAL. ACFT OK CONTINUE FOR SERVICE.

Part: FMC — FALSE INDICATION · airframe 13,311 hrs · 4,011 cycles

FMC DISAGREE ILLUMINATED AFTER ENGINE START. ACFT GROUNDED. LIGHT WENT OUT AFTER QRC PROCEDURE.

Part: FMC — UNKNOWN · airframe 13,252 hrs · 3,992 cycles

GROUND POWER TRIPPED OFF. GROUND POWER APPLIED AGAIN TO ACFT, RT FMC MCDU BLANK. ACFT GROUNDED. REDET POWER, PERFORMED RT CDU BITE CHECK, LCD TEST, NO DEFECTS FOUND. DFCS BITE 22-11-801 GOOD. GROUND VERIFICATION SUCCESSFUL.

Part: FMC — INOPERATIVE · airframe 13,202 hrs · 3,974 cycles

F/O FMC IS BLANK. ACFT GROUNDED. REBOOTED F/O FMC. OPS CHECK NORMAL.

Part: DISPLAY — MALFUNCTIONED · airframe 13,102 hrs · 3,939 cycles

F/O MCDU INOPERATIVE. ACFT GROUNDED. CYCLED POWER, F/O MCDU CAME ONLINE, CHECKED F/O MCDU IAW AMM 23-15-839-002. OPS NORMAL.

Part: UNKNOWN — UNKNOWN · airframe 12,974 hrs · 3,899 cycles

VNAV ABNORMALLY LOW SPEED COMMANDED DURING CLIMB. VNAV WAS COMMANDING A CLIMB SPEED OF 217 KIAS AT 4000 MSL. VNAV RESPONDED NORMALLY TO SPEED INTERVENTION. THROUGH THE CLIMB REGIME TO FL 360 WHEN ENGAGING VNAV IT WOULD COMMAND APPX 217KIAS. ONCE ESTABLISHED AT CRUISE VNAV RETURNED TO NORMAL. EXPECTED INDICATIONS. ALSO DURING CLIMB WITH ABNORMAL VNAV INDICATIONS - THE FMC PROGRESS PAGE WOULD NOT LOG THE FUEL REMAINING FOR THE MOST RECENTLY PASSED WAYPOINT. THE TIME OF THE WAYPOINT PASSAGE WAS LOGGED. THE NEXT WAYPOINT HAD NO ETA DISPLAYED AND NO EXPECTED FUEL. ONCE THE ACFT LEVELED OFF IN CRUISE ALL FMC PROGRESS PAGES DISPLAYED NORMALLY - BACK TO NORMAL OPERATIONS. ACFT GROUNDED. PERFORMED FIM 34-61, TASK 801. FMC BITE INFLT SHOWS NO STATUS ON LT OR RT FMC. PERFORMED FIM, 34-61, TASK 836, RESET BOTH FMC AND CHECKS NORMAL ACFT OK FOR SERVICE.

Part: COMPUTER — FAILED (EE BAY) · airframe 12,639 hrs · 3,802 cycles

REF T/C 78222000 STEP 2.D.(5) FAILS. WHEN ATTEMPTING TO SELECT V/S MODE ON MCP, MINIMUM SPEED REVERSION ACTIVATES AND V/S REVERTS TO LEVEL CHANGE, WITH UNDERSPEED LIMITING CHARACTER FLASHING IN IAS/MACH DISPLAY. ACFT GROUNDED. SWAPPED FCC A & B, VERIFIED PROBLEM LIES IN FCC A. REINSTALLED FCCS IN ORIGINAL POSITIONS. R & R FCC A, NEW PART BAD FROM STOCK (MESSAGES 22-11337 & 22-11339 PITCH & ROLL SENSOR EXC INV = 10 VOLTS). REMOVED, REPLACED, AND TESTED FCC A IAW MM 22-11-33-400-801. TESTS PASS. ACCOMPLISHED DFCS LRU REPLACEMENT TEST IAW MM 22-11-33/401, DFCS LAND VERIFY TEST IAW MM 22-11-00/201, AND HGS SENSOR TEST FOR FCC/AT IAW SMM 34-36-00. ALL TESTS PASS (FOR A & B FCC). ACFT REMAINS CATIIIA AUTOLAND & HGS, SCREW REFLECTS SAME.

Part: CDU — FAILED (FLIGHT DECK) · airframe 12,597 hrs · 3,790 cycles

CAPTAIN`S CDU WILL NOT POWER UP. ACFT GROUNDED. REMOVED CAPTAIN`S CDU IAW AMM 34-61-01-000-802 INSTALLED SERV CDU IN CAPTAIN`S POSITION, OPS CHECK GOOD IAW AMM 34-61-01-400-802.

Part: AUTOPILOT SYS — MALFUNCTIONED · airframe 12,437 hrs · 3,742 cycles

AUTOPILOT A DISCONNECTED TWICE IN CRUISE NO OBVIOUS REASON. ACFT GROUNDED. MCP DATA INVALID MSG 22-11607- REF FIM TASK 22-11, TASK 817 & 803 MCP, OPS TEST OK. FULL MCP OVERNIGHT TEST PASSED. NO FAULTS NOTED- CURRENT STATUS OK. GROUND VERIFICATION OF MCP ACCOMPLISHED. NO HISTORY 90 DAYS. REF MM 22-00-01/201 ACFT REMAINS CAT 3A AUTOLAND & HGS QUALIFIED. STATUS PLACARD REFLECTS THE SAME.

Part: TRANSCEIVER — FAILED (NR 1 HF SYS) · airframe 12,255 hrs · 3,699 cycles

HF NR 1 WILL NOT TRANSMIT OR RECEIVE. ACFT GROUNDED. NR 1 HF TRANSCEIVER BITE; KEY INTERLOCK LED SEQUENCES INCORRECTLY. REPLACED NR 1 HF TRANSCEIVER IAW MM 23-11-21. INSTALLATION TEST GOOD IAW SAME. HF COMM WITH SFO GOOD REF MM 23-11-00.

Part: LAMP — INOPERATIVE (EMERGENCY LIGHT) · airframe 12,200 hrs · 3,684 cycles

EXTERIOR EMERGENCY LIGHT AFT OF RT WHEEL WELL INOPERATIVE. REPLACED LAMP. OP CHECKED NORMAL.

Part: PANEL — CRACKED (NR 2 INLET) · airframe 11,661 hrs · 3,535 cycles

WHILE ACCOMPLIMENT OF TC 78472000, NR 2 ENG INLET & FAN INSPECTION FOUND BLEED VALVE LOWER PANEL 530-600 POSN AFT LOOKING FWD CRACKED. REPLACED PANEL IAW AMM 72-23-07-400-801-F00.

Part: CIRCUIT BREAKER — TRIPPED (CROSSFEED VALVE) · airframe 11,596 hrs · 3,519 cycles

AT FL 350, ATTEMPTED OPENING OF FUEL CROSSFEED VALVE FOR FUEL BALANCING, BLUE LIGHT DID NOT ILLUMINATE EITHER BRIGHT OR DIM. PERFORMED QRH PROCEDURE, NOTICED FUEL CROSSFEED CIRCUIT BREAKER OUT P6-3, B-7 LOCATION. SUSPECT CROSSFEED VALVE REMAINED CLOSED. RESET CIRCUIT BREAKER P-6-3 PANEL, B-7 LOCATION FUEL CROSSFEED IAW AMM 20-60-01. PERFORMED OPS TEST OF CROSSFEED VALVE IAW AMM 28-22-21-710-801, GROUND VERIFICATION NORMAL.

Part: VALVE — FAILED (NR 1 ENGINE) · airframe 11,440 hrs · 3,478 cycles

NR 1 ENG COWL VALVE OPEN LIGHT REMAINED BRIGHT WITH SWITCH IN THE ON POSITION TAI LIGHT ON UPPER DU WAS ILLUMINATED GREEN. ACCOMPLISHED FIM TASK 30-21, TASK 805 THRU STEP E (3)(A) PG2. LIGHT REMAINS ON BRIGHT. REPLACED ENG 1 COWL TAI VALVE NO LEAKS NOTED, OPS CK NORMAL REF MM 30-21-11.

Part: ECU — FAULTED (NR 2 ENGINE) · airframe 11,118 hrs · 3,399 cycles

WHILE PREFORMING FMC-CDU T/C FOUND FAULT CODE 76-31362 FOR THE NR 2 ENGINE, START LEVER SIGNALS DISAGREE LONG TERM FAULT. R & R NR 2 ENG EEC. REF MM 73-21-60-000-801-FOO AND 73-20-60-400-801-FOO. PERFORMED FADEC SYS TEST REF MM 73-21-00-700-802-F00. EEC SOFTWARE VERSION VERIFIED COMPATIBLE. RAN ENGINE. NO FAULT CODE.

Part: INDICATOR — TRIPPED (NR 2 IDG) · airframe 9,922 hrs · 3,072 cycles

DURING OIL SERVICE, NOTICED SMALL AMOUNT OF OIL UNDER NR 2 ENGINE PRIOR TO SERVICE. OPENED IDG ACCESS DOOR, FOUND DIFFERENTIAL PRESSURE INDICATOR PIN EXTENDED. R & R IDG SCAVENGE AND CHARGE FILTERS REF AMM 24-11-41-000-801 24-11-41-400-801. NO LEAKS NOTED - LEAK CHECK GOOD. RESET DPI - THIS WAS FIRST RESET. ACCOMPLISHED IDG SCAVENGE AND CHARGE FILTER INSP/CHECK - NO CONTAMINATION FOUND. NO OTHER OIL LEAKS NOTED NR 2 ENGINE.

Part: APU — MALFUNCTIONED · airframe 9,895 hrs · 3,063 cycles

APU FAULT LIGHT ILLUMINATED, APU DID NOT START. APU BITE CHECK SHOWS MSG-49-41012 NO ROTATION SHUTDOWN. ACCOMPLISHED FIM TASK 49-40-00-810-803 . FROM APU BITE CHECK. STARTED APU NUMEROUS TIMES. FAULT DID NOT RETURN. NO HISTORY 60 DAYS.

Part: CONTROL PANEL — WEAK (FLIGHT DECK) · airframe 9,605 hrs · 2,972 cycles

MAIN CONTROL PANEL SPEED WINDOW EXTREMELY DIM. ALL OTHER MCP LIGHTS ARE NORMAL. DID GET IT TO GO BRIGHTER BY TAPPING ON LIGHT PANEL HOWEVER IT DID GO DIM AGAIN. SPEED BUG AND ALL SYSTEMS WORK NORMALLY. ACFT GROUNDED. R & R MODE CONTROL PANEL REF MM 22-11-34-400-801, OPS NORMAL. PERFORMED ADDITIONAL TEST REF LWMP CHECKLIST 22-00-01-730-801, 32 DFCS LRU INTERFACE FOR MCP, NR 49 LAND VERIFY & HGS SENSOR FCC/AT IAW SMM 34-36-00, ALL TEST PASSED.

Part: CONTROL VALVE — FAILED (A/C PACK) · airframe 9,213 hrs · 2,855 cycles

ON MASTER CAUTION RECALL - RT PACK LIGHT ILLUMINATED, LIGHT EXTINGUISHED ON RESET. R & R NR 2 (RT SIDE) TEMPERATURE CONTROL VALVE, HAD A HARD FAULT DURING CONTROLLER BITE CHECK. MX DONE IAW AMM 21-51-10-000-801 AND 21-51-10-400-801, OPS AND LEAK CHECK GOOD.

Part: SENSOR — FAULTED (R2 WINDOW) · airframe 9,198 hrs · 2,852 cycles

RT SIDE WINDOW OVERHEAT LIGHT ON. TURNED OFF FOR 5 MINUTES, CAME BACK ON IMMEDIATELY WHEN POWER RESTORED. SENSOR FAULT RT SIDE WINDOW HEAT CONTROL UNIT. MOVED LEAD TO SPARE WINDOW TEMP SENSOR ON RT SIDE WINDOW IAW FIM 30-41 TASK 811. RT SIDE WINDOW HEAT CONTROL UNIT BITE TESTS NORMAL IAW FIM 30-41 TASK 801. WINDOW HEAT OPS NORMAL.

Part: IGNITER — DAMAGED (NR 1 ENGINE) · airframe 9,432 hrs · 2,917 cycles

LT ENGINE WOULD NOT START. ACFT GROUNDED. FOUND RT IGNITER PLUG DAMAGED. R & R IGNITION PLUG, RT REF T/C 78474000, NO FAULTS, CODES IN EEC BITE TEST. OPS CK NORMAL.

Part: MODULE — FAILED (PITOT/WINSHIELD) · airframe 9,332 hrs · 2,885 cycles

ON CLIMB-OUT, LOST ALL PROBE HEAT (A) (ALL CBS IN). GEN 2 - 56 AMPS GEN 1-66 TO 95 AMPS. ACFT GROUNDED. VERIFIED DISCREPANCY WITH PROBE HEAT SWITCH ON (A) VERIFIED LIGHTS REMAIN ON WITH TEMP GUN, VERIFIED PROBES HOT WITH SWITCH ON. R & R P5-9, REF 30-41-41 WINDOW/PITOT HEAT MODULE. OPS NORMAL REF SAME MM AND VERIFIED PROBES HOT W/TEMP GUN.

Part: COUPLER — LOOSE (HF RADIO) · airframe 8,925 hrs · 2,763 cycles

NR 1 AND 2 HF RADIOS TESTED UNSATISFACTORY ON BOTH HEADS. ACFT GROUNDED. NR 1 AND 2 HF RADIO CHECK LOW AND HIGH FREQUENCIES WERE 2 X 2, VISUALLY INSPECTED ANTENNA AND COUPLER ATTACHMENT POINTS, NO DEFECTS FOUND. FOUND 1 & 2 HF COAX DISCONNECTS AT E8-1 RACK LOOSE, RESECURED BOTH COAX CONNECTORS. R & R NR 2 HF COUPLER REF MM 23-11-6, 2 C/BS. NR1 & 2 HF OPS NORMAL REF MM 23-11-00.

Part: CONTROL PANEL — FAILED (NR 1 HF SYSTEM) · airframe 8,832 hrs · 2,735 cycles

HF1 TRANSMIT FUNCTION INOPERATIVE. AUDIO RECEPTION FUNCTIONS NORMALLY. ACFT GROUNDED. UNABLE TO DUPLICATE DEFECT, NR 1 HF OPS NORMAL. R & R NR 1 HF COUPLER REF MM 23-11-61, OPS CHECK NORMAL. REQUIRES FLIGHT VERIFICATION OF NR 1 HF. FLT VERIFICATION UNSUCCESSFUL. IAW VERIFYING FLIGHT CREW NR 1 HF FAILED ENROUTE CHECK. SFO RADIO COULD NOT HEAR US. WE COULD HEAR THEM. WE ONLY TRIED THE F/O CONTROL PANEL. ACCOMPLISHED FIM 23-11-00-810-806. ESTABLISHED COMMUNICATIONS AT 2330 LOCAL TIME ON FREQUENCY 5.547. CAPTAINS TRANSMIT AND RECEIVE GOOD FOR HF NR 1 AND HF NR 2. F/O TRANSMIT AND RECEIVE GOOD FOR HF NR 2, BUT F/O HF NR 1 TRANSMIT WAS UNREADABLE. F/O HF NR 1 RECEIVE WAS GOOD. REPLACED F/O AUDIO CONTROL PANEL REF MM23-51-02. INSTALLATION TEST OPS NORMAL. VERIFIED WITH SFO GOOD TRANSMIT AND RECEIVE OF HF NR 1 AND NR 2 FROM BOTH CAPTAIN AND F/O POSITION. FLIGHT VERIFICATION CK COMPLETED SUCCESSFULLY.

Part: OIL SYSTEM — LOW (APU) · airframe 8,976 hrs · 2,785 cycles

APU MAINTENANCE LIGHT CAME ON AFTER APU START. ACFT GROUNDED. PERFORMED FIM TASK 49-60-00-810-801. FOUND NO FAILURES IN CURRENT STATUS & FAULT HISTORY. FOUND MAINT MESSAGE 49-91227 LOW OIL QTY IN MAINT HISTORY. PERFORMED FIM TASK 49-90-00-810-804. SERVICED APU OIL. RAN BITE TEST. NO FAULTS/MESSAGES NOTED. RAN APU SEVERAL TIMES & NO MAINT LIGHT ILLUMINATED.

Part: DISPLAY — INTERMITTENT · airframe 8,971 hrs · 2,782 cycles

MCP IAS/MACH WINDOW DISPLAY VERY DIM EVEN WITH MAIN PANEL BRIGHTNESS ALL THE WAY UP. ACFT GROUNDED. COULD NOT DUPLICATE. SHOOK DOWN MODE CONTROL PANEL, MCP IAS/MACH WINDOW DISPLAY CHECKED NORMAL.

Part: TRANSCEIVER — FAILED (HF SYSTEM) · airframe 8,785 hrs · 2,720 cycles

LOST ABILITY TO TRANSMIT USING HF 1 TRIED RECHANNELING RADIO NO EFFECT SWITCHED TO HF 2, OPS OK. ACFT GROUNDED. PERFORMED T/S REF FIM 23-11-00-810-806, FOUND NR 1 RT INOP R & R NR 1 RT IAW AMM 23-11-21-801 AND INSTALLED NR 1 RT IAW AMM 23-11-21-400-801. GROUND VERIFICATION FOR NR 1 HF SUCCESSFUL, NO HISTORY 30 DAYS.

Part: CONTROL VALVE — FAILED (NR 2 ENGINE) · airframe 8,656 hrs · 2,684 cycles

DUCT SPLIT IN CLIMB, EXCEEDED 20 PSI, DIFFERENTIAL L-N1 100.1 46 PSI, R N1 100.2 23 PSI. AFTER 10 MINUTES CRUISE AT FL 380 BOTH N1 89.7 BOTH 40 PSI. ACCOMPLISHED NR 2 ENG HEALTH CHECK IAW TASK CARD NG-36WC-00001. FOUND PRECOOLER CONTROL VALVE FAILED. R & R NR 2 ENG PRECOOLER CONTROL VALVE REF MM 36-12-02-400-801. LEAK AND OPS CHECK GOOD. PERFORMED ENG BLEED AIR CROSSOVER CHECK NO DUCT SPLIT NOTED AT 2 MIN HIGH POWER, REF MM 36-11-00-710-801.

Part: IDG — FAILED (NR 2) · airframe 8,657 hrs · 2,684 cycles

WHILE PERFORMING PDC FOUND NR 2 ENGINE DELTA P ON IDG POPPED GROUNDED - YES. PERFORMED W/O 169161 - NR 2 ENG IDG FILTER AND OIL CHANGE. THROUGH HISTORY AND IDG PLACARD THIS IS THE 3RD POP OF THE IDG. R & R NR 2 IDG IAW MM 24-11-11-000-801 AND MM 24-11-11-400-801. CHECKED GOOD.

Part: FMC — MALFUNCTIONED · airframe 8,254 hrs · 2,573 cycles

DURING TAXI OUT, FMC DISAGREE MESSAGE APPEARED. ACFT GROUNDED. ACCOMPLISHED QRH PROCEDURE. FMC MESSAGE NO LONGER DISPLAYED.

Part: SWITCH — MALFUNCTIONED (CONTROL COLUMN) · airframe 7,980 hrs · 2,501 cycles

ON CLIMBOUT, STAB TRIM BECAME INOPERATIVE ON RUNNING QRH PROCEDURE FOUND STAB TRIM CONTROL CIRCUIT BREAKER POPPED. DIVERSION TIME: 28 MINUTES. DISCONNECTED ELECTRONIC CONNECTOR CAPT CONTROL CUTOUT SWITCH. CIRCUIT BREAKER REMAINS CLOSED WITH ELECTRONIC STAB MOVEMENT. R & R CAPTAIN`S CONTROL COLLUMN SWITCH IAW 27-41-51-400-801. OPS CHECK OF CAPTS COLUMN CUTOUT SWITCH IAW 27-41-710-801. SATISFACTORY STAB TRIM MOTOR TEST IAW AMM 27-41-71-700-801. STAB TRIM MOTOR TEST 22-11-601-701-801, PERFOMED SATISFACTORY. STAB TRIM CONTROL CIRCUIT BREAKER REMAINS CLOSED THROUGHOUT TEST.

Part: WARNING MESSAGE — FALSE INDICATION (FMC) · airframe 7,898 hrs · 2,472 cycles

FMC DISAGREE. ACFT GROUNDED. ACCOMPLISHED QRH PROCEDURE. OPS NORMAL.

Part: FILTER — DIRTY (CABIN) · airframe 7,706 hrs · 2,413 cycles

CONT CAB ZONE TEMP LIGHT ILLUMINATED ON RECALL LIGHT WENT OUT WITH MASTER CAUTION RESET. REPLACED CONT CABIN ZONE TRIM AIR MOD VLV PER AMM 21 61 21 00 801 AND 21 6121 400 801. PERF INT EVAL OF PACK/ZONE TEMP CNTRL PER FIM 21 62 TASK 801. NR 2 CNTRL FAULTED FLT DCK TRIM VALVE. REPLACED CNTRL CABIN SENS FILTER PER AMM 21 61 06 400 801. OP PACKS PER FIM 21 62 TASK 801 NO FLTS NOTED ON BOTH PACK/ZONE TEMP CNTRLRS.

Part: IGNITER — INOPERATIVE (NR 1 ENGINE) · airframe 7,048 hrs · 2,239 cycles

NR 1 ENGINE WOULD NOT START. NO EGT W/IN 10 SEC NO FUEL FLOW WHEN START LEVER RAISED TO IDLE. FUEL FLOW INDICATOR INITALLY SHOWED .60 BUT DROPPED BACK TO 0 AFTER APPROX 1 SECOND. IGNITION SWITCH WAS IN RIGHT POSITION. REF FAULT CODE 74 30961. REPLACED NR 1 ENG IGNITER PLUGS REF T/C 78474000. AUDIBLE TEST OK. PERFORMED NORMAL ENG START WITH IGNITION SWITCH IN RIGHT POSITION REF MAINT CHECK LIST.

Part: FILTER ELEMENT — DEFECTIVE (NR 1 IDG) · airframe 6,959 hrs · 2,211 cycles

IDG DELTA P INDICATOR EXTENDED ON NR 1 ENGINE. REPLACED IDG SCAVENGE AND CHARGE FILTER ON NR 1 ENGINE. NO PARTICALS FOUND. RESET DELTA P INDICATOR IAW AMM 24 11 41 000 801. RAN ENGINE NO LEAKS NOTED AND INDICATOR REMAINED SET.

Part: FILTER ELEMENT — DEFECTIVE (NR 2 IDG) · airframe 6,866 hrs · 2,184 cycles

NR 2 ENG IDG FILTER PIN POPPED. REPLACED IDG SCAVANGE & CHARGE FILTER REF AMM 24 11 41 000 801 24 11 41 200 801 024 11 41 400 8010.

Part: TRANSCEIVER — MALFUNCTIONED (E&E BAY) · airframe 6,293 hrs · 2,014 cycles

NR 1 HF WILL NOT TUNE AND UNABLE TO RECEIVE. GROUNDED YES. NR 1 HF TRANSCEIVER WILL NOT BITE TEST PER TASK 23 11 00 810 801 NO LED'S COME ON WHEN TEST SWITCH IS PUSHED. REPLACED NR 1 HF TRANSCEIVER IAW M/M 23 11 21 000 801 & 23 11 21 400 801. PERFORMED BITE TEST PER TASK 23 11 00 810 801. NO DEFECTS NOTED.

Part: EEC — FAULTY (NR 2 ENGINE) · airframe 6,268 hrs · 2,006 cycles

AFTER START ON NR 2 ENG, ENG NR 2 CONTROL LIGHT ILLUMINATED ON THE OVERHEAD PANEL. VERIFIED DISCREPANCY EEC BITE FAULT CODE 73 10222 INTERNAL FAULT. PERFORMED FIM 73 21 TASK 801. REPLACED NR 2 EEC AND OPS NORMAL PER AMM 73 21 60 400 801 F00. SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.

Part: TRANSCEIVER — MALFUNCTIONED (E&E BAY) · airframe 6,268 hrs · 2,006 cycles

UNABLE TO TRANSMITT NR 1 HF RECEIVED OK. REPLACED NR 1 HF TRANSCEIVER PER AMM 23 11 21 OPS CHECK NR 1 HF TRANSCEIVER PER AMM 23 11 00 GROUND VERIFICATION OP CHECK GOOD.

Part: UNKNOWN — MALFUNCTIONED (FMC) · airframe 6,050 hrs · 1,935 cycles

WHILE ON APPROACH TO 16R IN SEA ATTEMPTED TO MAKE A LEG INTERCEPT AND THE FMC FROZE. AFTER A FEW MOMENTS VTK SHOWED ON MAP DISPLAY AND A MAP SHIFT OCCURRED. FMC THEN DROPPED TO "HOME" (MENU) PAGE AND WAS UNRESPONSIVE. AFTER SEVERAL MINUTES FMC DID BECOME RESPONSIVE AGAIN WITH BLUE LETTERING SHOWING AT THE TOP OF THE LEGS PAGE. FMC LEFT AND RIGHT SENSOR STATUS PAGE NORMAL. FMC LEFT AND RIGHT SHOW PGM FAULT. PERFORMED FIM TASK 34 61 0 TASK 807 FOUND NORMAL. GROUND VERIFICATION SUCCESSFUL PER SEAMC REF MM 34 61 0.

Part: BRACKET — BROKEN (WING)

DURING A C-CHECK IN YUL, THE OMEGA BRACKET AT THE FLAP FARING OUTBOARD SIDE OF THE FLAP ARM AT RIB 13 LEFT WAS FOUND BROKEN. MAINTENANCE REMOVED AND REPLACED THE OMEGA BRACKET AT THE FLAP FARING OUTBOARD SIDE OF THE FLAP ARM AT RIB 13 LEFT IAW SRM 51-25-01. (M)

Part: DOUBLER — CRACKED (WING BOX)

DURING A C-CHECK IN YUL, THE DOUBLER IN THE WING BOX AT FRAME 28A LT WAS FOUND CRACKED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE DOUBLER IN THE WING BOX AT FRAME 28A LT IAW SRM 51-25-01. (M)

Part: BRACKET — BROKEN (LT WING)

DURING A C-CHECK IN YUL, THE OMEGA BRACKET ON THE LEFT SIDE OF THE FLAP BEAM AT RIB 8 WAS FOUND BROKEN. MAINTENANCE REMOVED AND REPLACED THE OMEGA BRACKET ON THE LEFT SIDE OF THE FLAP BRAM AT RIB 8 IAW SRM 51-25-01. (M)

Part: BRACKET — BROKEN (WING)

DURING A C-CHECK IN YUL, THE OMEGA BRACKET ON THE LEFT WING INBOARD SIDE OF THE OUTBOARD FLAP AT RIB 13 WAS FOUND BROKEN. MAINTENANCE REMOVED AND REPLACED THE INBOARD OMEGA BRACKET AT RIB 13 LEFT IAW SRM 51-25-01. (M)

Part: LAMP — BURNED OUT (EMERGENCY LIGHT)

DURING A GROUND INSPECTION, THE FLIGHT ATTENDANT REPORTED THE EMERGENCY LIGHT ON THE PASSENGER DOOR WAS INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE EMERGENCY LIGHT LAMP ON THE PASSENGER DOOR. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (K)

Part: LAMP — BURNED OUT (EMERGENCY LIGHT)

DURING HANGAR MAINTENANCE, THE EMERGENCY LIGHT ON THE PASSENGER DOOR WAS FOUND TO BE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE EMERGENCY LIGHT LAMP ON THE PASSENGER DOOR. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE.

Part: SUPPORT BEAM — CORRODED (FUSELAGE)

DURNG A C-CHECK IN YUL, THE LEFT Z-SUPPORT BEAM BETWEEN FS 39 AND FS 40 WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE LEFT Z-SUPPORT BEAM BETWEEN FS 39 AND FS 40 IAW SRM 51-25-01. (M)

Part: GUIDE — CORRODED (TE FLAPS)

DURING A C-CHECK IN YUL, THE LEFT OUTBOARD FLAP NR 6 CAM GUIDE WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE LEFT OUTBOARD FLAP NR 6 CAM GUIDE IAW AMM 20-21-12. (M)

Part: GUIDE — CORRODED (TE FLAPS)

DURING A C-CHECK IN YUL, THE RIGHT INBOARD FLAP NR 2 CAM GUIDE AT RIB 5, AND THE RIGHT INBOARD FLAP NR 3 CAM GUIDE AT RIB 6 WERE FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE RIGHT INBOARD FLAP NR 2 CAM GUIDE AT RIB 5, AND THE RIGHT INBOARD FLAP NR 3 CAM GUIDE AT RIB 6 IAW AMM 20-21-12. (M)

Part: FLOORBEAM — CORRODED (FUSELAGE)

DURING A C-CHECK IN YUL, THE FLOORBEAM AT FS 39 WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE FLOORBEAM AT FS 39 IAW SRM 51-25-01. (M)

Part: GUIDE — CORRODED (TE FLAPS)

DURING A C-CHECK IN YUL, THE RIGHT INBOARD FLAP NR 1 CAM GUIDE AT RIB 4 WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE RIGHT INBOARD FLAP NR 1 CAM GUIDE AT RIB 4 IAW AMM 20-21-12. (M)

Part: GUIDE — CORRODED (TE FLAPS)

DURING A C-CHECK IN YUL, THE RIGHT OUTBOARD FLAP NR 3 CAM GUIDE AT RIB 16 WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE RIGHT OUTBOARD FLAP NR 3 CAM GUIDE AT RIB 16 IAW AMM 20-21-12. (M)

Part: GUIDE — CORRODED (TE FLAPS)

DURING A C-CHECK IN YUL, THE RIGHT OUTBOARD FLAP NR 2 CAM GUIDE AT RIB 15 WAS FOUND TO BE CORRODED LIMITS. MAINTENANCE REMOVED AND REPLACED THE RIGHT OUTBOARD FLAP NR 2 CAM GUIDE AT RIB 15 IAW AMM 20-21-12. (M)

Part: GUIDE — CORRODED (TE FLAPS)

DURING A C-CHECK IN YUL, THE RIGHT OUTBOARD FLAP NR 4 CAM GUIDE AT RIB 17 WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE RIGHT OUTBOARD FLAP NR 4 CAM GUIDE AT RIB 17 IAW AMM 20-21-12. (M)

Part: GUIDE — CORRODED (TE FLAPS)

DURING A C-CHECK IN YUL, THE NR 3 AND 4 CAM GUIDES OUTBOARD ON THE LEFT INBOARD FLAPS WERE FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE NR 3/4 CAM GUIDES OUTBOARD ON THE LEFT INBOARD FLAP IAW AMM 20-21-12. (M)

Part: SEAT TRACK — CORRODED (FUSELAGE)

DURING A C-CHECK IN YUL, THE RIGHT INBOARD SEAT TRACK BETWEEN FRAME 35/36 WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE RIGHT INBOARD SEAT TRACK BETWEEN FRAME 35/36 IAW SRM 53-00-00, FIG 434 AND 53-21-04. (M)

Part: INTERCOSTAL — CORRODED (FUSELAGE)

DUIRNG A C-CHECK IN YUL, THE LEFT AND RIGHT INTERCOSTALS AT FS 38/39 WERE FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE LEFT AND RIGHT INTERCOSTALS AT FS 38/39 IAW SRM 51-25-01. (M)

Part: SEAT TRACK — CORRODED (FUSELAGE)

DURING A C-CHECK IN YUL, THE RIGHT INBOARD SEAT TRACK AT FS 36 TO 39, AND THE LEFT SEAT TRACK AT FS 36/38 WERE FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE RIGHT INBOARD SEAT TRACK AT FRAME 36 TO FRAME 39, AND THE LEFT SEAT TRACK AT FS 36/38 IAW SRM 51-25-04. (M)

Part: CREASE BEAM — CORRODED (FUSELAGE)

DURING A C-CHECK IN YUL, THE LEFT CREASE BEAM AT FS 39 WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE LEFT CREASE BEAM AT FS 39 IAW SRM 51-25-01. (M)

Part: INTERCOSTAL — CORRODED (FUSELAGE)

DURING A C-CHECK IN YUL, THE LEFT INTERCOSTAL BETWEEN FS 36/38 WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE LEFT INTERCOSTAL BETWEEN FS 36/38 IAW SRM 51-25-01. (M)

Part: GUIDE — CORRODED (TE FLAPS)

DURING A C-CHECK IN YUL, THE NR 5 AND 6 CAM GUIDES OUTBOARD ON THE LEFT INBOARD FLAP AS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE NR 5 AND 6 CAM GUIDES OUTBOARD ON THE LEFT INBOARD FLAP IAW AMM 20-21-12. (M)

Part: FLOORBEAM — CORRODED (FUSELAGE)

DURING A C-CHECK IN YUL, THE FLOORBEAMS AT FS 36 BETWEEN STRINERS 16R AND 16L, AND FS 38 BETWEEN STRINGERS 15R AND 15L WERE FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE FLOORBEAMS AT FS 36 BETWEEN STRINGERS 16R AND 16L, AND FS 38 BETWEEN STRINGERS 15R AND 15L IAW SRM 51-25-01. (M)

Part: GUIDE — CORRODED (TE FLAPS)

DURING A CHECK IN YUL, THE NR 2 CAM GUIDE OUTBOARD ON THE LEFT OUTBOARD FLAP WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE NR 2 CAM GUIDE OUTBOARD ON THE LEFT OUTBOARD FLAP IAW AMM 20-21-12. (M)

Part: CIRCUIT BREAKER — TRIPPED (EMERGENCY LIGHTS)

DURING A GROUND INSPECTION IN ATL, THE EMERGENCY LIGHTS REMAINED ON IN THE ARMED POSITION. MAINTENANCE RESET CIRCUIT BREAKER K-26. OPS CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)

Part: POWER SUPPLY — INOPERATIVE (EMERGENCY LIGHT)

DURING HANGAR MAINTENANCE IN MCN, THE RIGHT AFT EMERGENCY EXIT LIGHT WAS FOUND TO BE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED AN EMERGENCY LIGHTS POWER SUPPLY AT 73WL. OPS CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)

Part: RESISTOR — MALFUNCTIONED (ELE ANTI HORN)

DURING CLIMB-OUT, THE CREW RECEIVED A RUDDER AND LT ELEVATOR HEAT FAULT. QRH PROCEDURES WERE COMPLIED WITH AND AN EMERGENCY WAS DECLARED. THE AC LANDED SAFELY. MAINTENANCE REMOVED AND REPLACED THE LT ELEVATOR ANTI-HORN RESISTOR. OPS CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)

Part: SUPPORT BRACKET — CRACKED (FUSELAGE)

DURING HANGAR MAINTENANCE IN MCN, THE LT MAIN LANDING GEAR TOP LT AFT UPLOCK SUPPORT BRACKET WAS FOUND TO BE CRACKED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE LEFT MAIN LANDING GEAR TOP LEFT AFT UPLOCK SUPPORT BRACKET. OPS CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)

Part: SKIN — CORRODED (FUSELAGE)

DURING A C-CHECK IN BNA, THE CENTER BELLY SKIN BETWEEN FR 23D AND 24 WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REPAIRED THE CORRODED CENTER BELLY SKIN BETWEEN FR 23D AND 24 BY FABRICATING AND INSTALLING A DOUBLER IAW SRM 51-21-42 AND SRM 53-00-00. (M)

Part: SEAT TRACK — CORRODED (FUSELAGE)

DURING A C-CHECK IN BNA, THE LEFT SEAT TRACK FROM FRAME 37 TO 41 WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE LEFT SEAT TRACK FROM FRAME 37 TO 41 IAW SRM 51-25-02 AND SRM 51-25-04. (M)

Part: SILL — CORRODED (FUSELAGE)

DURING A C-CHECK IN BNA, THE RIGHT SILL PLATE FROM FRAME 39 TO 41 WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE RIGHT SILL PLATE FROM FRAME 39 TO 41 IAW SRM 51-25-01 AND SRM 51-25-03. (M)

Part: ANGLE — CORRODED (FUSELAGE)

DURING A C-CHECK IN BNA, THE MAIN PASSENGER DOOR FORWARD THRESHOLD 'T' ANGLE WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE MAIN PASSENGER DOOR FORWARD THRESHOLD 'T' ANGLE IAW SRM 51-25-02. (M)

Part: WIRE — CORRODED (EMERGENCY LIGHT)

DURING A HANGAR INSPECTION IN MCN, THE EMERGENCY LIGHT ON THE AIRSTAIR DOOR WAS FOUND TO BE INOPERATIVE. MAINTENANCE REPAIRED A CORRODED WIRE ON THE AIRSTAIR DOOR EMERGENCY LIGHT. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)

Part: LIGHT — MALFUNCTIONED (CABIN)

DURING FLIGHT FROM ATL-CHA, THE EMERGENCY LIGHTS ILLUMINATED WITH THE SWITCH SELECTED TO THE ARM POSITION. MAINTENANCE RAN THE RIGHT ENGINE WTH THE EMEGENCY LIGHTS OPERATIONING NORMAL. NO DEFECTS WERE NOTED. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)

Part: BATTERY PACK — DISCHARGED (EMERGENCY LIGHT)

FLT 4378 - DURING FLIGHT FROM ABY-ATL, THE FORWARD SECTION OF EMERGENCY LIGHTS ILLUMINATED WITH THE SWITCH IN THE ARM POSITION. MAINTENANCE REMOVED AND REPLACED THE EMERGENCY LIGHTS NR 2 BATTERY PACK. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)

Part: TURBINE BLADES — FRACTURED (LT ENGINE)

FLT 4086 - DURING FLIGHT FROM GSG-ATL, A LOW OIL PRESSURE MESSAGE ON THE LEFT ENGINE OCCURRED. THE ENGINE WAS SHUTDOWN BY THE CREW AND AN EMERGENCY WAS DECLARED. THE AIRCRAFT LANDED SAFELY IN ATL. MAINTENANCE REMOVED AND REPLACED THE LEFT ENGINE. ACCORDING TO RESULTS FROM THE ENGINE TEARDOWN REPORT, INSPECTION OF THE BEARINGS AND OTHER OIL RELATED PARTS DID NOT SHOW ANY SIGN OF OIL STARVATION AND LOSS OF OIL PRESSURE COULD NOT BE CONFIRMED. HOWEVER, DUE TO INVESTIGATIONS PERFORMED ON THE POWER TURBINE PACK, IT WAS CONCLUDED THE ENGINE MOST LIKELY FAILED DUE TO A POWER TURBINE 1 BLADE FRACTURE. (M)

Part: LIGHT — INOPERATIVE (CABIN)

DURING A HANGAR INSPECTION IN MCN, THE AIRSTAIR DOOR EMERGENCY LIGHT WAS INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE EMERGENCY LIGHT ASSEMBLY. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)

Part: CONTROL PANEL — FAULTY (COCKPIT)

FLT 4308 - DURING GROUND INSPECTION AT ATL, CREW OBSERVED EMERGENCY LIGHTS STAYED ON. THEN, WHEN EXTINGUISHED, THE LIGHTS WOULD NOT COME BACK ON. MAINTENANCE REMOVED AND REPLACED THE ANTI-ICE/SIGN PANEL ASSEMBLY. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE. (M)

Part: FRAME — CRACKED

DURING C-CHECK INSPECTION IN BNA, MAINTENANCE FOUND CRACK AT FRAME 26. MAINTENANCE REPAIRED CRACK AT FRAME 26 IAW ASA E072-53-0111 AND ATR S/B 72-53-1078, WHICH OUTLINES THIS REPAIR. (M)